—What are you doing this Saturday?
—I'm not sure, but I ________ go to the Rolling Stones concert.
A．must B．would
C．should D．might
—It rained cats and dogs this morning.I'm glad we took an umbrella.
—Yeah, we would have got wet all over if we ________.
A．hadn't B．haven't
C．didn't D．don't
I ________ myself more—it was a perfect day.
A. shouldn’t have enjoyed B. needn’t have enjoyed
C. wouldn’t have enjoyed D. couldn’t have enjoyed
They were abroad during the months when we were carrying out the investigation, or they _____ toour help.
A. would have come B. could come
C. have come D. had come
People are recycling many things which they away in the past.
A. had thrown B. will be throwing
C. were throwing D. would have thrown
It was sad to me that they, so poor themselves, ________ bring me food.
A. might B. would
C. should D. could
