––_______ have you been a volunteer?
––Since three years ago.
A. How long B. When C. How often D. What
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
