－Are you coming to the English evening?－I’m not sure. I go to the concert instead.

will Taixing in ten years — It will be much cleaner and more beautiful, I’m sure.

Unless ______ , we’ll have to shut down some branch companies for lack of money.

Excuse me, where are we going to have our class meeting—I’m not sure. Ask Li Hua, please. He _________ know.

Silly me! I forget what my luggage looks like.— What do you think of_____over there