问题 选择题

Parents________send their children to school when they reach six years old.

A.could

B.were able to

C.ought to

D.would

答案

答案:C

句意:当孩子满六岁时,家长应当送孩子去上学。根据语境可知,应填ought to,表示有责任,从法律或道义上“应该”做。

单项选择题
选择题