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题目内容
（安徽广播电视大学-土木工程）
—She may not be free today.
—________, we.ll have to put the meeting off.
A、If may
B、If not
C、If she may not
D、If she may
—________, we.ll have to put the meeting off.
A、If may
B、If not
C、If she may not
D、If she may
参考答案
