问题
选择题
—Where is Tom?
—He didn't come to school today. I think he be ill. [ ]
A. has to
B. should
C. may
D. need
答案
答案：C
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—Where is Tom?
—He didn't come to school today. I think he be ill. [ ]
A. has to
B. should
C. may
D. need
答案：C