IV.

21. B. held

22. D. around

23. C. give

24. D. national

25. C. most

26. A. with

V.

27. It is about 300 km from Ho Chi Minh City to Phu Quoc Island.
28. Traffic rules should be obeyed strictly by road users.

29. If you are not careful, you’ll hurt yourself.

VI.

30. They will be learning English this time tomorrow.

31. My brother doesn’t like ice-skating because he thinks it is dangerous.

32. People won’t use flying cars until year 2050.

IV.

21. B

22. D

23. C

24. D

25. C

26. A

V.

27. It is about 300km from Ho Chi Minh City to Phu Quoc.

The distance from + S1 + to + S2 + is + khoảng cách = It is + khoảng cách + from + S1 + to + S2

28. Traffic rules should be obeyed strictly by road users.

S + should/ could + be + V3/ed + (by+O): câu bị động dạng động từ khiếm khuyết

29. If you are not careful, you’ll hurt yourself.

If + S + HTĐ, S + will + V0: câu ĐK loại 1

VI.

30. They will be learning English this time tomorrow.

31. My brother doesn’t like ice-skating because he thinks it is dangerous.

32. People won’t use flying cars until year 2050.

Bạn học tốt ~

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