1. He( often/ clean) __often cleans___ his bedroom at the weekend.

2. He( sometimes/ be) ____is sometimes_____ bored in the math lessons.

3. Our teacher( never/ be) __is never_____ late for lessons.

4. Mai ( usually/ do) ___usually does____ her homework in the evening.

5. Lisa( sometimes/ take) __sometimes takes___ a bus to class.

6. __Do__ you ( often/ watch) __often watch_____ action movies?

7. My mother (never/ buy) ___never buys____ fast food and she ( usually/ eat) ___ usually eats___ healthy food.

8. It (always/be) __is always__ hot and sunny here in August.

9. It ( sometimes/ rain) ___sometimes rains__ here in the summer.

10. John and I ( often/ go) __often go__ out for a drink together.

11. They ( always/ do) __always do__ their homework before going to school.

12. My aunt is a vegetarian. She ( often/ eat) __often eats__ fruits and vegetables and (seldom/ eat) __seldom eats__ meat.

13. My grandmother ( always/ go) __always goes__ for a walk in the evening.

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$-$ Cấu trúc thì hiện tại đơn:

$+$ Với động từ thường: S + V(s,es).

$+$ Với trợ động từ do/does: S + do/does (+not) + V(s,es).

$+$ Với tobe (is/am/are): S + is/am/are (+not) + noun/adj.

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$@haanx2$

1. often cleans

2. is sometimes

3. is never

4. usually does

5. sometimes takes

6. Do you often watch

7. never buys - usually eats

8. is always

9. sometime rains

10. often go 

11. always do

12. often eats - seldom eats

13. always goes

- Tất cả các câu trên đều dùng thì HTĐ. Giải thích thêm:

- cấu trúc khẳng định: S + V s/es + ... (số ít thì động từ thêm s/es còn số nhiều thì động từ nguyên mẫu)