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21 tháng 10 2021

76 Young people of different nationalities

77 There are ten expeditions every year

78 Each expedition lasts for ten weeks and takes 150 volunteers

79 Help scientists to do environmental research

80 It is English

21 tháng 10 2021

76. Young people goes on expeditions.

77. There are ten expeditions every year.

78. Each expedition last for ten week.

79. Volunteer help scientists to do environmental research.

80. We must know speak English to become a volunteer.

14 tháng 8 2016

Bài nào vậy, chụp hình đi

8 tháng 4 2021

1 is covered

2 was invited

3 were caused

4 is being built

5 wasn't stolen

6 would be stacked

7 was invented

8 were translated

9 will be canceled

10 has not been used

11 being caught

12 was invented

13 is believed

14 has been celebrated

15 painted

16 are being planted

17 was taken

18 to be recognized

5 tháng 8 2023

B1

1. is

2. is

3. are

4. is

5. is/ am

6. aren't

7. are

8. Is she

9. is

10. are

B2

5. doesn't

7. don't

8. doesn't

9. don't

10. don't

B3

1. starts

2. likes

3. bake

4. writes

5. doesn't know

6. has

7. swim

8. helps 

-----------

CT thì hiện tại đơn:

(+) S + V(s/es) + O

(-) S + don't/ doesn't + V + O

(?) Do/Does + S + V + O?

Tobe: am/is/are

- Nếu chủ ngữ là số ít, he, she, it thì tobe là is và V phải thêm s/es.

- Nếu chủ ngữ là số nhiều, you, we, they thì to be là are và V giữ nguyên.

- Nếu chủ ngữ là I thì tobe là am và V cũng giữ nguyên.

1 D

2 C

3 B

4 A

5 B

6 C

7 tháng 1 2022

1 D

2 C

3 B

4 A

5 B

6 C

21 tháng 10 2021

1. Did you watch

2. have watched

3.  read

4. Have you read

5. am reading

6. have finished