题目内容
We _____in this school for about two
years.
years.[ ]
A. study
B. studied
C. will study
D. have studied
B. studied
C. will study
D. have studied
D
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We _____ in this pool when we were young, but now it _____ fish.
| A．are used to swim; used to keep |
| B．are used to swimming; used to keep |
| C．used to swimming; is used to keep |
| D．used to swim; is used for keeping |