题目内容
-Will you answer the telephone?It ________ be your mother.
-Sorry, I ________.I’m busy.
[ ]
A.can, mustn’t
B.will, can’t
C.may, can’t
D.need, will
答案:C
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题目内容
-Will you answer the telephone?It ________ be your mother.
-Sorry, I ________.I’m busy.
A.can, mustn’t
B.will, can’t
C.may, can’t
D.need, will