问题补充:
We were very busy yesterday. Otherwise we part in the discussion.
A. would take
B. did take
C. had taken
D. would have taken
答案:
A. would take
B. did take
C. had taken
(答案→)D. would have taken
解析:考查虚拟语气,句意:昨天我们真的很忙,否则,我们就会参加讨论了。Otherwise相当于if we hadn’t been busy yesterday,所以主句用虚拟语气,选D。