1. A

2. B

3. B

4. C

5. A

6. A

7. C

8. C

9. C

10. B

=(47 x 347)x(1547 x 2)

=. 16309.    x  3094

=.   50.460.046

Nên trả lời chi tiết hơn.

1.flying sauce

2.astronaut 

3.traces

4.space buggy

5.solar system 

6.planet

7.aliens

8.outer space.

9.galaxy

10.weightless 

1. Aliens may/might exist in ways that we can’t even imagine.

2. Many scientists think that there may/might be life on other planets.

3. Scientists said that farthest stars in Milky Way may/might be cut by another galaxy.

4. I may/might not go to the party because I’m not feeling very well. 

5. In the future, it may/might be possible to build a spaceship that can travel to a distant planet. (Dự đoán về tương lai.)

6. I have an appointment at the dentist’s at 4.00. May I leave half an hour early?

7. Astronomers thought the dwarf planet 2007 OR10 might have a moon. (Dùng "might" vì đây là suy đoán trong quá khứ.)

8. If we found water on Mars, we might use it to make rocket fuel. (Câu điều kiện loại 2, dùng "might" để diễn tả khả năng trong trường hợp giả định.)

9. The examiner says we may leave when we’ve finished. (Dùng "may" để diễn tả sự cho phép từ giám khảo.)

10. Some scientists think aliens may/might have two legs, or any legs at all.

1. does not love

2. takes

3. am brushing

4. is making

5. listens

6. is walking

7. Do - go

8. is talking

9. are playing

10. give

11. am washing

12. watch

13. does not go

14. are reading

15. is hiding

16. Do - drink

17. love

18.is listening

19. Is - drawing

20. am mowing

1. does → do (they dùng với do).

2. Do → Does (he dùng với does).

3. watch → watches (windy là số ít).

4. goes → go (we dùng với go).

5. carries → carry (sau does dùng động từ nguên thể)

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