Mike went to the library ________ some books yesterday.

Could you tell me ______ yesterday?–I’m sorry, boss, My car was broken on my way here.

What do you think of your host family, Jim?—Great. They try ________ best to make me feel at home.

English is _________ so difficult to me. I can’t learn it well.— Don’t give up(放弃).

When I was a boy, I often ______ to play in that park.