1.B
根据答语的not yet可知问句采用现在完成时.
因为yet是现在完成时的特征用词,即：Not yet = I haven't found my ticket yet.
2.C
只有can't可以表示“你（现在）不可能找到它”.
may表示可能性时,一般用于肯定句/疑问句,不用于否定may not；
mustn't意思是“不许/禁止”,句意不通；
couldn't表示“你过去不可能找打他”,时态错误.
1— Lucy,________ you________ your ticket?— Not yet.
3个回答
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