第二语法和词汇知识(共15小题;每小题1分,满分15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。We ____last night, but we went to the concert instead. A. must have studied B. might study C. should have studied D. would study
— What’s the matter with you? —______the heavy suitcase, my waist was hurt unexpectedly.
I hear they’ve promoted Tom, but he didn’t mention_______ when we talked on the phone.
The situation seems to be better, and I suppose it is because of the war ______ to an end.
The young man _______in studying paid no attention to the outside world.
Every possible means _______to prevent the air pollution, but the sky is still not clear.