— It’s one o’clock now. I must go.
— It’s raining outside. Don’t leave it stops.
A. when B. since C. while D. until
— Must they clean and tidy the classroom now?
— No, they . It after school in the afternoon.
A. mustn’t; must clean B. needn’t; must clean
C. mustn’t; need be cleaned D. don’t have to; can be cleaned
— Oh, Miss Wei. Your skirt looks nice. Is it new?
— No, I it since three years ago.
A. had B. bought C. have had D. have bought
— Has Li Hong gone to the library?
— Pardon?
— I asked the library.
A. if Li Hong had gone to B. if had Li Hong gone to
C. Li Hong had gone to D. has Li Hong gone to
They have made so great progress .
A. three years ago B. for three years
C. in the past three years D. before three years
The earth is years old.
A. four thousands six hundreds B. four thousand six hundred
C. four thousand and six hundred million D. four thousand six hundred millions
