7.——You were out when I dropped in at your house.
——Oh, I ________ for a friend from England at the airport.
A.was waiting B.had waited C.am waiting D.has waited
【答案】A。解析:句意是:(你来我家时) 我正在机场等候一位从England来的朋友。表示在过去某一时刻或在过去某一段时间内正在发生的事,用过去进行时,选择A。
8.________ of danger in the street at night, she had to go home, with a friend ________ her.
A.Warning, following B.Having warned, following
C.Having been warned, following D.Warned, followed
【答案】C。解析:warn这一动作发生在主句动作had to go之前,应用-ing的完成形式,且与主句的主语存在着被动关系;a friend与follow之间是主动关系。故选C。
9.You ________ buy a gift, but you can if you want to.
A.must B.mustn’t C.have to D.don’t have to
【答案】D。解析:don’t have to 意为没有必要,符合语境,句意为:你没有必要买礼物,但如果你想买的话,你也可以买。
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