He has been collecting coins _______ he was seven years old.
A. because B. while C. when D. since
She is usually _______. Why did she get ill so suddenly?
A. in style B. out of style C. in good health D. in time
Because of Project Hope (希望工程), _______ children have better lives.
A. thousand B. thousand of C. thousands of D. two thousands
— 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
