Itwasreadingwuxiabooksthatcostthelittleboyplentyoftime...
来源：语文精选馆 6.46K
问题详情：
It was reading wuxia books that cost the little boy plenty of time that he ________ doing his lessons.
A. might have spent B. must have spent
C. could have spent D. should have spent
【回答】
D
知识点：虚拟语气与情态动词
题型：选择题
