下列四幅图中，工作原理与其他三个不同的是 ( )
A．帽子上的风扇B．手摇发电机
C．扬声器D．自制小电动机
﹣﹣Have you got the results of the exam？
﹣﹣No．All we do now is to wait．（ ）
A．mustB．canC．mayD．could
﹣﹣Dad，I'll be in the final singing competition tomorrow．
﹣﹣Be careful not to get a sore throat and your voice．（ ）
A．loseB．raiseC．dropD．break
Even though we're in difficult times，we need to keep hope ．（ ）
A．realB．aliveC．freshD．close
﹣I don't like reading watching TV．What about you？
﹣I don't like reading all day， I like watching TV news．（ ）
A．and； orB．and； andC．or； andD．or； but
﹣How are you today？
﹣﹣Oh，I as ill as I do now for a long time．（ ）
A．didn't feelB．wasn't feeling
C．don't feelD．haven't felt
帽子上的风扇B．
手摇发电机
扬声器D．
自制小电动机
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