问题补充:
单选题Tomwasabouttoclosethewindowhisattentionwascaughtbyabird.A.whenB.ifC.andD.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
时间:2021-12-02 20:28:38
单选题Tomwasabouttoclosethewindowhisattentionwascaughtbyabird.A.whenB.ifC.andD.till
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