Now I can hear Lily ______ in the classroom. A. sing B. singing
题型：不详难度：来源：
Now I can hear Lily ______ in the classroom.
A. sing B. singing C. sings |
答案
| B |
解析
| 有now 表示现在正在发生，根据hear sb do sth或doing sth，前者表示已经做过，而后者某人正在做，故选B |
举一反三
There are some students _____ on the playground.
A. run B. running C. to run |
The floor is quite wet, and my teacher told us _________ quickly.| A．to mop up it | B．mopped it up | C．to mop it up | D．mop it up |
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Do you need him _______ all the things?| A．to carry | B．carry | C．carrying | D．carries |
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She wants to give up French．| A．learn | B．learning | C．learns | D．to learn |
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You can’t put off ______ your homework．You must do it now．| A．to do | B．do | | C．to doing | D．doing |
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