Anna hasn't come to school today. I think she _______ be ill. [ ]A. can B. has to C. may D. sho
[ ]
题目简介
Anna hasn't come to school today. I think she _______ be ill. [ ]A. can B. has to C. may D. sho
题目详情
[ ]
B. has to
C. may
D. should
答案