I often spend an hour____to English on the radio.A,to practice listening B,practicing listeningC,practicing to listen为什么选B

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I often spend an hour____to English on the radio.A,to practice listening B,practicing listeningC,practicing to listen为什么选B
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I often spend an hour____to English on the radio.A,to practice listening B,practicing listeningC,practicing to listen为什么选B
I often spend an hour____to English on the radio.A,to practice listening B,practicing listening
C,practicing to listen为什么选B

I often spend an hour____to English on the radio.A,to practice listening B,practicing listeningC,practicing to listen为什么选B
正确:B
spend some time (in) doing sth.
practice doing sth.
因此,两个词都必须使用doing形式.

spend 时间/金钱on sth. spend 时间/金钱(in ) doing sth. 所以选practising 而又因为practise doing sth.所以选B

  1. spend +时间+doing sth    花费时间做某事

  2. practicing doing sth. 练习做某事

没有practice to do这个说法   

因为 主语+spend+一段时间+V.ing sth. "某人花费多少时间做某事”
practise +v.ing "练习做某事”
所以选B