He could swim when he was 7 age 

He could swim at the age of 7

Câu `1`

`->C`

Vì `-21/56=-3/8`

Câu `2`

`x/4=6/(-12)`

`=> -12x = 4 .6`

`=> -12x= 24`

`=> x=24:(-12)`

`=> x=-2`

`->B`

Câu `3`

`->A`

Câu `4`

Vì `A` là trung điểm `BC`

Mà `AC=3m`

`->AB=AC=3cm`

`BC=AB+AC`

`BC= 3+3`

`->BC=6(cm)`

`->D`

1.C

2.B

3.A

4.D

Dịch

hướng dẫn, thời hạn, đến nơi, căng tin, lắp ráp, tiếp tân, bữa trưa đóng gói, mong chờ

guide=hướng dẫn,term=kì học,arrive=đến,assembly=lắp ráp,reception=tiếp tân,packed lunch=hộp đựng thức ăn trưa,canteen=căn tin,look forward to=mong đợi

Choose the best words or phrases to complete the sentences below

1. Television..................very popular since the 1950s.

A. is                            B. was                        C. has been                D. have been

2. - "Who sings best in your school?"       - "Minh............."

A. sings                      B. is                            C. has                         D. does

3. Please ask them .......................in this area.

A. don't smoke          B. not smoking         C. not to smoke         D. to not smoke

4. Let's go to the museum, ................?

            A. will you                B. shall we                 C. do we                     D. don't you

5. He though much of his childhood.............. he lived with his family in the country.

            A. that                        B. where                    C. when                      D. which

6. It is the largest ship I......................

            A. Has seen               B. saw                        C. have ever seen     D. seen

7. Students are looking forward to................on holiday.

  A. go                           B. going                     C. went                       D. have gone

8. His grandfather died.......................the age of 90.

            A. in                           B. of                           C. on                           D. at

9. Drinking and smoking will do great harm..............people's health.

            A. to                           B. for                          C. with                       D. in

10. Lomonosov was not....................a great scientist but also a very talented poem.

            A. fairly                     B. merely                   C. hardly                    D. scarely

11. His parents never allowed him.............

            A. to smoking           B. smoking                C. to smoke               D. smoked

12. School children always object to ...................uniform.

A. wearing                 B. wear                       C. have worn             D. wore

13. Wine is made...............rice.

            A. of                           B. from                       C. in                            D. with

14. Let your name....................in the sheet of paper

            A. to be written         B. be written             C.write                       D. being written

15. He was offered the job.................he had no experience.

            A. even though         B.dispite                    C.while                       D.however

16. If only he............accept some help with the work instead of trying to do it alone.

            A. will                        B. may                        C. would                    D. were

17.He always....................

            A. avoids to meet me                                   B. avoiding to meet me

            C. avoids meeting me                                  D. to avoid meeting me

18.After a month, Hoa got used to......................in her new school.

            A. study                     B. studying                C. studied                  D. is studying

19.He likes.....................him "sir"

            A. to call                    B. calling                   C. to be called           D. to be calling

20.He has his sister.......................his homework.

            A. to do                      B. do                           C. doing                     D. done

Choose the best words or phrases to complete the sentences below

1. Television..................very popular since the 1950s.

A. is                            B. was                       _C. has been_                D. have been

2. - "Who sings best in your school?"       - "Minh............."

A. sings                      B. is                            C. has                         _D. does_

3. Please ask them .......................in this area.

A. don't smoke          B. not smoking         _C. not to smoke_         D. to not smoke

4. Let's go to the museum, ................?

            A. will you                _B. shall we_                 C. do we                     D. don't you

5. He though much of his childhood.............. he lived with his family in the country.

            A. that                        B. where                    _C. when_                      D. which

6. It is the largest ship I......................

            A. Has seen               B. saw                        _C. have ever seen_     D. seen

7. Students are looking forward to................on holiday.

  A. go                           _B. going_                     C. went                       D. have gone

8. His grandfather died.......................the age of 90.

            A. in                           B. of                           C. on                           _D. at_

9. Drinking and smoking will do great harm..............people's health.

            _A. to_                           B. for                          C. with                       D. in

10. Lomonosov was not....................a great scientist but also a very talented poem.

            A. fairly                     _B. merely_                   C. hardly                    D. scarely

11. His parents never allowed him.............

            _A. to smoking_           B. smoking                C. to smoke               D. smoked

12. School children always object to ...................uniform.

A. wearing                 _B. wear_                       C. have worn             D. wore

13. Wine is made...............rice.

            A. of                           _B. from_                       C. in                            D. with

14. Let your name....................in the sheet of paper

            A. to be written         _B. be written_             C.write                       D. being written

15. He was offered the job.................he had no experience.

            A. even though         _B.dispite_                    C.while                       D.however

16. If only he............accept some help with the work instead of trying to do it alone.

            A. will                        B. may                        _C. would_                    D. were

17.He always....................

            A. avoids to meet me                                   B. avoiding to meet me

            _C. avoids meeting me_                                  D. to avoid meeting me

18.After a month, Hoa got used to......................in her new school.

            A. study                     _B. studying_                C. studied                  D. is studying

19.He likes.....................him "sir"

            A. to call                    B. calling                   _C. to be called_           D. to be calling

20.He has his sister.......................his homework.

            A. to do                      _B. do_                           C. doing                     D. done

17. how many-> how much

18. any-> some 

19. to go-> go

20. gram-> grams

21. buying->to buy

22. a->an

_{khôi nguyễn}

17. How many => much rice and how many => much beef do you want?

18. She 'd like a dozen eggs and any=> some vegetables.

19.We need eight hundred gram=> grams of beef.

20. What would you like buying => to buy at the canteen?

21.there is a =>an apple on the table

...wheree

I/have/a great time/Hai Duong City

→ I have a great time in Hai Duong City

I have a great time in Hai Duong city

1.clean

2.live

3.lots

4.are

5.for

1. How many novels have been writen by James?

2. How many times have you met Ann?