问题补充:
---Let’s back up. Where was I?
---You about the trip to South Africa.
A. were talking
B. talked
C. are talking
D. would talk
答案:
(答案→)A. were talking
B. talked
C. are talking
D. would talk
解析:考查时态。句意:—我们回顾一下。我讲到哪里了?—你正讲到去南非的旅行。根据句意说明询问的是在过去的某个时间点上正在发生的事情,所有使用过去进行时的时态。故A正确。
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