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THE TEST I. Put the verbs in blankets into the correct form. 1. She always ( go)……………….……the zoo with her parents 2. Lan (buy) …………………a new English book yesterday. 3. I can’t come out now because I (finish) ……………… my homework. 4.(The Pikes /spend) …........ several weeks in Ha Long bay last summer ? 5. My father (read)......................now.He always (read)............a book after dinner. 6.Be quiet ! The baby ( sleep) ……………………….. 7. The sun ( set)………………………….. in the West. ...
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THE TEST

I. Put the verbs in blankets into the correct form.

1. She always ( go)……………….……the zoo with her parents

2. Lan (buy) …………………a new English book yesterday.

3. I can’t come out now because I (finish) ……………… my homework.

4.(The Pikes /spend) …........ several weeks in Ha Long bay last summer ?

5. My father (read)......................now.He always (read)............a book after dinner.

6.Be quiet ! The baby ( sleep) ………………………..

7. The sun ( set)………………………….. in the West.

8.Mr Green always ( go)………………….. to work by bus.

9.. It ( not rain )……………………….. in the dry season.

10.His uncle ( teach)………………… English in our school five years ago.

11. There (be)…………………………… a lot of noise at the fair yesterday.

12. It (take)…………………………… me 5 minutes to walk to school last year.

13. John( do)……………………………….. his homework everynight

14.Where are you?- I’m upstairs. I (have)……………………………. a bath.

15.What you( do)…………………………. yesterday?

16. Where( you / spend)…………………………… your holiday last year?

17- My father (not watch)…………………………………… TV every night.

18-People (speak) ………………English in most of Canada.

19. What …………………..your mother often (do) ………….. at weekends?

20. We (go) ____________________to that village to do volunteer work last week

21. My parents (buy) ____________________this house 20 years ago.

22. The students ( not be) ___________________at school on last Monday.

23. (They /help) ________________the elderly people cook food some days ago?

24. My father (not play) _________________any sport  last year.

25.Tom (call)                                                     his boss yesterday.

26. We ( not spend) ………………… our summer vacation in Ha Long Bay last July.

27. I (hear) ……………… the good news from Mary a few minutes ago.

28. She often (go) ......................... to the market with her mother every weekend.

29. My younger sister (collect) ................. dolls two years ago.

30.Last night, my father ( watch) ………………………..TV.

31. Mr Dam ( organize)…………………….his 34th birthday last week.

32. My cousin( visit)……………………Son Doong last summer vacation.

33. Nam’s friends often (give)…………………. him stamps from other countries.
34. My sister (practice) …………………. the guitar twice a week.

35. What …………..your mother (do) ……………… last weekends?

36. At the moment, he (play)……………..computer games.

37- My father (not watch)………………………… TV every night.

PRONUNCIATION

1. A. talked                        B. painted                          C. asked                     D. liked

2. A. worked                      B. stopped                         C. forced                     D. wanted

3. A. waited                       B. mended                         C. objected                  D. faced

4. A. roses                         B. villages                         C. apples                     D. matches

5. A. succeeds                   B. devotes                         C. prevents                  D. coughs

6. A. kissed                        B. helped                           C. forced                     D. raised

7. A. sees                           B. sports                            C. pools                     D. trains

8. A. tombs                        B. lamps                            C. brakes                     D. invites

9. A. books                        B. floors                            C. combs                     D. drums

10. A. devoted                   B. suggested                      C. provided                  D. wished

11. A. stops                         B. climbs                          C. pulls                     D. televisions

12. A. cats                         B. tapes                             C. rides                     D. cooks      

13. A. agreed                     B. missed                           C. liked                     D. watched

14. A. walks                      B. begins                           C. helps                     D. cuts

15. A. shoots                      B. grounds                         C. concentrates  D. forests

16. A. hours                       B. fathers                           C. dreams                    D. thinks

17. A. beds                        B. doors                             C. plays                     D. students

18. A. worried                   B. bored                            C. disappointed  D. annoyed

19. A. comes                     B. rolls                              C. takes                     D. drives

 

1
29 tháng 7

Mình đã hoàn thiện ở hai bài sau r nhé

\(E=\dfrac{3}{14}+\dfrac{1}{28}+\dfrac{1}{68}+...+\dfrac{1}{988}\)

\(=\dfrac{3}{14}+\dfrac{3}{84}+\dfrac{3}{204}+...+\dfrac{3}{2964}\)

\(=3\left(\dfrac{1}{2\cdot7}+\dfrac{1}{7\cdot12}+...+\dfrac{1}{52\cdot57}\right)\)

\(=\dfrac{3}{5}\left(\dfrac{5}{2\cdot7}+\dfrac{5}{7\cdot12}+...+\dfrac{5}{52\cdot57}\right)\)

\(=\dfrac{3}{5}\left(\dfrac{1}{2}-\dfrac{1}{7}+\dfrac{1}{7}-\dfrac{1}{12}+...+\dfrac{1}{52}-\dfrac{1}{57}\right)\)

\(=\dfrac{3}{5}\left(\dfrac{1}{2}-\dfrac{1}{57}\right)=\dfrac{3}{5}\cdot\dfrac{55}{114}=\dfrac{1}{38}\cdot11=\dfrac{11}{38}\)

25 tháng 7

chỉ mik với

 

25 tháng 7

Từ 1 - 9 có 9 số có 1 chữ số. Số chữ số là: 

                \(9.1=9\left(cs\right)\)

Từ 10 - 99 có 90 số có 2 chữ số. Số chữ số là:

              \(90.2=180\left(cs\right)\)

Từ 100 - 254 có 255 số có 3 chữ số. Số chữ số là: 

             \(255.3=765\left(cs\right)\)

Số chữ số cần dùng là:

            \(9+180+765=954\left(cs\right)\)

                     \(Ds:180cs\)

25 tháng 7

giup minh ik

25 tháng 7

Đề bài: Có 7kg gạo, 1 quả cân có khối lượng 1hg và 2 đĩa cân. Lấy 3hg gạo để nấu một suất ăn. Hỏi phải cân như thế nào để chỉ một lần là cân được 3hg gạo?

                                        Bài giải

 Muốn cân một lần là cân được 3hg gạo ta làm như sau:

-B1: Lấy 3 quả cân có khối lượng 1hg đặt lên 1 đĩa cân

-B2: Đổ số gạo sao cho hai đĩa cân có trọng lượng bằng nhau                             

25 tháng 7

1. is talking ("at this moment" -> HTTD)

2. are helping ("now" -> HTTD)

3. is running ("!" -> HTTD)

4. is baking ("at this moment" -> HTTD)

5. is eating (Vế sau có "and" và vế sau sử dụng thì HTTD)

6. is helping ("now" -> HTTD)

7. are learning (Câu sau có "now" -> HTTD)

8. Are (you) using (Dựa vào câu trả lời dự đoán hoàn cảnh xảy ra ở thời điểm nói -> HTTD)

9. isn't (Sở thích -> HTĐ)

10. has ("Monday" -> Lịch trình có sẵn -> HTĐ)

11. Doesn't (often) play (Việc làm hằng ngày, lặp đi lặp lại -> HTĐ)

29 tháng 7

1 is talking

2 are helping

3 is running

4 is baking

5 is eating

6 is helping

7 are learning

8 are you using

9 is not

10 has

11 doesn't often play 

25 tháng 7

Bài 4.2:

\(a.\left(\dfrac{1}{4}\right)^3\cdot\left(\dfrac{1}{8}\right)^2\\ =\left[\left(\dfrac{1}{2}\right)^2\right]^3\cdot\left[\left(\dfrac{1}{2}\right)^3\right]^2\\ =\left(\dfrac{1}{2}\right)^6\cdot\left(\dfrac{1}{2}\right)^6\\ =\left(\dfrac{1}{2}\right)^{12}\\ b.25\cdot5^3\cdot\dfrac{1}{625}\cdot5^3\\ =5^2\cdot5^3\cdot\dfrac{1}{5^4}\cdot5^3\\ =5^8\cdot\dfrac{1}{5^4}\\ =5^4\\ c.4^2\cdot32:2^3\\ =\left(2^2\right)^2\cdot2^5:2^3\\ =2^4\cdot2^5:2^3\\ =2^{4+5-3}\\ =2^6\\ d.5^6\cdot\dfrac{1}{20}\cdot2^2\cdot3^3:125\\ =\left(\dfrac{1}{20}\cdot2^2\cdot5\right)\cdot5^5\cdot3^3:5^3\\ =5^2\cdot3^3\)

bài 4.3:

a: \(\dfrac{4^6\cdot9^5+6^9\cdot120}{8^4\cdot3^{12}-6^{11}}=\dfrac{2^{12}\cdot3^{10}+2^{12}\cdot3^{10}\cdot5}{2^{12}\cdot3^{12}-2^{11}\cdot3^{11}}\)

\(=\dfrac{2^{12}\cdot3^{10}\left(1+5\right)}{2^{11}\cdot3^{11}\left(2\cdot3-1\right)}=\dfrac{2}{3}\cdot\dfrac{6}{5}=\dfrac{12}{15}=\dfrac{4}{5}\)

b: \(\dfrac{9\cdot5^{20}\cdot27^9-3\cdot9^{15}\cdot25^9}{7\cdot3^{29}\cdot125^6-3\cdot3^9\cdot15^{19}}\)

\(=\dfrac{3^2\cdot5^{20}\cdot3^{27}-3\cdot3^{30}\cdot5^{18}}{7\cdot3^{29}\cdot5^{18}-3^{10}\cdot3^{19}\cdot5^{19}}\)

\(=\dfrac{3^{29}\cdot5^{18}\left(5^2-3^2\right)}{3^{29}\cdot5^{18}\left(7-5\right)}=\dfrac{16}{2}=8\)

25 tháng 7

308; 380; 803; 830; 333; 888; 338; 388; 383; 833; 838; 833; 808; 880; 303; 330

25 tháng 7

1. is talking

2. are helping

3. runs

4. is baking

5. is eating

6. is helping

7. are learning

8. Are you using

9. Isn't

10. has

11. isn't playing

25 tháng 7

Cắt xúc xích ra làm 12 miếng, ta có 1 người 8 miếng, 1 người. 4 miếng. Nhớ tick cho mình nhé. Cảm oen