--Sit down,please.--_________.A.Yes B.Thank you C.Bye-Bye
By the time I locked the door, I realized I ________my keys at home.
—________ English movies is helpful to learn English.—But I find _______ hard to understand when the people speak fast.
—_____I finish my homework now?—No, you_____. Your work is over today.
Peter likes pop music, but ______ his father ______ his mother likes it.
Vera and Mike come from _____ European country. They are in _____ same school now.