问题

What are you doing under the table —I _____ to find my watch.
A:tried
B:try
C:am trying
D:have tried
B:try
C:am trying
D:have tried
正确答案是:
同类题型
Newton was playing under an apple tree ____ an apple fell onto his head.
If you are too formal, people around you won’t be _____[ ]
I don’t care for baseball.—How can you say you don’t like somethingyou’ve never even tried it!
The plane was late the heavy snow.
help you You seem to be having some problems.— ______, thanks. I think I can manage.