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
问题描述：
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
答
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
答
spend +时间+doing sth 花费时间做某事
practicing doing sth. 练习做某事
没有practice to do这个说法
答
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.
答
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