The children always talk and laugh,but when the teacher comes into the classroom they .The children always talk and laugh,but when the teacher comes into the classroom they _____ their lesson.A.stop to do B.stop doing C.stops to do D.Stops doing

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The children always talk and laugh,but when the teacher comes into the classroom they .
The children always talk and laugh,but when the teacher comes into the classroom they _____ their lesson.A.stop to do B.stop doing C.stops to do D.Stops doing

A
这里要区分 stop doing 和 stop to do 的差别
stop to do 表示停下郑子昂做的事去做别的.
stop doing 表示停下正在做的事
题目中说孩子们总是爱讲话爱笑,但是当老师进来的时候他们__ 他们的课,
这样的话肯定是说停下说话笑闹去听课,所以是选A,they是第三人称复数,排除C

A

a
停止这件事去做另一件事:stop to do sth.
停止做某事:stop doing sth.

A.他们停下(说话)去做作业。
stop to do停下去做某事
stop doing停下某事

A they是复数不能用stops, stop to do 停下来(开始)做,stop doing停止做

A
学习是一件愉快的事! (*^__^*)
请及时采纳,多谢!

A. stop to do
stop to do 停下来去做另外一件事
stop doing停止正在做的事情

B