题目内容
-Whose backpack is this?
-It __________ be Jim's.Look, his student's card is in it.
[ ]
A.
must
B.
can
C.
mustn't
D.
can't
答案:A
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题目内容
-Whose backpack is this?
-It __________ be Jim's.Look, his student's card is in it.
must
can
mustn't
can't