問題補(bǔ)充：
單選題
______ Tom, we wouldn’t have been late for the last bus.A.If we didn’t wait forB.If we haven’t waited forC.we hadn’t waited forD.Had we not waited for
網(wǎng)友答案：
熱心網(wǎng)友 1樓
D解析考查if非真實(shí)條件句的虛擬語氣，從主句用wouldn’t have been，可知是if we had not waited…,這也可以變成had we not waited，選D，句意是：如果我們沒有等湯姆，我們就不會(huì)趕不上最后一班車。選D。
