It’s pouring now. Are we still going camping tomorrow?—-_____ it is good or bad, we will set off as planned.

Are Mr. and Mrs. Wang living alone in the house? —-Yes, altough they have three sons, of them live with their parents.

There are two _______students in my school.

I’d like to send this letter ______ England ______ air. [ ]

“Have you ever been to HK, Jim?”—– “ Yes , I ______ there for two weeks with my parents last summer.”