问题
选择题
Sam spends two hours _______ his homework every day.
A.to do
B.doing
C.do
D.does
答案
答案:B
题目分析:句意: Sam每天花两个小时的时间做家庭作业。spends sth( in) doing sth花费时间在做某事上,in可以省略。故选B。
Sam spends two hours _______ his homework every day.
A.to do
B.doing
C.do
D.does
答案:B
题目分析:句意: Sam每天花两个小时的时间做家庭作业。spends sth( in) doing sth花费时间在做某事上,in可以省略。故选B。