1.Harry is feeling uncomfortable. He (drink) too much at the party last night.
答案 must have drunk
2.I (go) to my cousins birthday party last night, but I was not available.
答案 would have gone
3.When I was a child, I watch TV whenever I wanted to.
答案 could
4.—What are you going to do this Saturday?
—Im not sure, but I go to the concert.
答案 might
5.Why didnt you tell me about your trouble last week? If you (tell)me, I could have helped.
答案 had told
