---Guesswhat!Ihaveownthefirstprizeinthespeakingcompeti...
来源：语文精选馆 1.63W
问题详情：
---Guess what! I have own the first prize in the speaking competition.
---Congratulations! You ______ put a lot of work into it.
A. should B. must C. should have D. must have
【回答】
D
知识点：虚拟语气与情态动词
题型：选择题
