1. Mary (be) ____________________ seriously ill since last night.
2. They sometimes (go) ____________________ school by bus.
3. How long __________ you (study) __________ English?
- I (study) ____________________ it for 7 years.
4. We last (see) _____________ them last Sunday.
5. I (not meet) _______have not met_____________ him since he moved to Hanoi.
6. Now they (play) _ ___________________ happily in the school yard.
7.We (not finish)________ our exercises yet
8. My friend said he (be) __________ working in Hanoi then.
9. Mr. David (just buy) ____________________ a new house.
10. They (build) ____________________ a new hospital in my neighborhood next month.
Giải thích là thì gì ? Và tại sao lại là thì đó và hoàn thành câu . Hứa vote câu trl hay nhất .
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Sinh Học lớp 12
