题目内容
Tom was about to close the window his attention was caught by a bird.
A.when |
B.if |
C.and |
D.till |
【答案】
A
【解析】句意:汤姆正要关上窗户,就在这时一只鸟引起了他的注意。在句式“...be about to do...when...”中,when作并列连词,相当于and at that time,句中was about to close为标志词,故答案为A项。
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