16. —Who it be that is knocking at the door? —It be Father, but I’m not sure. A. can; mus

发布时间：2020-08-15 02:59:56


16. —Who     it be that is knocking at the door?  
—It      be Father, but I’m not sure.  
A. can; must
B. can; may
C. must; can
D. may; must

网友回答

A. can; must
(答案→)B. can; may
C. must; can
D. may; must
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