单选题
By the time Tom makes up his mind, the offer ______.
A、
is cancelled
B、
will cancel
C、
will have been cancelled
D、
will be canceling
【正确答案】
C
【答案解析】
本题与上题相近,都是考查by一词的用法。By后的从句要用现在式表示将来时,而主句要用将来完成时,即will have done…。另外,offer是被取消的,应用被动语态,故选C。
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