–Whose shirt is this?--It be Li Lei’s. It is too big for him.A. couldB. mustC. can’tD. mi

问题补充：

–Whose shirt is this?

--It be Li Lei’s. It is too big for him.

A. could

B. must

C. can’t

D. might

答案：

A. could

B. must

(答案→)C. can’t

D. might

解析：考查情态动词。句意：——这件衬衫是谁的？——不可能是李雷的，它太大了。选C。