—Where is Lu Wenjie? —I have no idea．He be in the library.A. canB. mustC. mightD. shall

问题补充：

—Where is Lu Wenjie?

—I have no idea．He be in the library.

A. can

B. must

C. might

D. shall

答案：

A. can

B. must

(答案→)C. might

D. shall

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