he wasn`t feeling well.he had to ____ 1.stops working 2.stop working 3.stops to work 4.stop to work
问题描述：
he wasn`t feeling well.he had to ____ 1.stops working 2.stop working 3.stops to work 4.stop to work
答
选2
have to do sth
stop doing sth
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答
选2
have to do sth 必须做某事
stop doing sth 停止做某事
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答
选2
had to +动词原形 stop doing 停止做某事