试题:
Nancy spent half an hour _______ playing the piano every day.
A.practiceB.practicingC.to practicingD.to practice

答案:

我来补答
B

试题分析:句意:Nancy 每天花半小时练习弹钢琴。spent 的原形是spend,spend sometime doing sth.花费时间做某事。故用动词的ing形式,故选B。
 
 
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这些题目你会做吗?