The number of students in our school _________ by over 20 percent in the last three years .
| A．is fallen | B．has fallen |
| C．are fallen | D．have fallen |
相关试题
I don’t know when he ______. When he ______, I will let you know.
| A．will arrive, will arrive |
| B．arrives, arrives |
| C．will arrive, arrives |
| D．arrives, will arrive |
------Whose shirt is this?
------ It _______ be Li Lei’s. It is too big for him.
| A．could | B．must |
| C．can’t | D．might |
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