They are the girls who _____ from No. 1 middle school.

I ____ have supper until my mother ____ back every day.

—_____ have you travelled abroad with your parents?—Only twice.

—Open the window, please.  —Certainly. Which one? _______ beside the door?

—Did you find your lost key?—No, but I think ________ must have picked it up.

No matter ______, please keep quiet in the library.

I ______ go to bed______ my mother came back home.

—_______ yogurt do you need?
—A cup is enough.

Miss Zhu is one of the most popular _________ in our school.

---__________ does it take to finish your homework?  --- For an hour.