All the students are busy ____English in the morning.Apractising to read Bpractising reading

问题描述:

All the students are busy ____English in the morning.Apractising to read Bpractising reading
Cto practise to read Dto practise reading

正确答案为:
B
be busy doing sth 忙于做某事,后跟现在分词,固定用法
practise doing sth 练习做某事,固定用法,表示一种常态
所以的学生在早上都忙着练习读英语.
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