1. I heard the telephone ringing, but by the time I _____ indoors, it stopped.
A. had got B. has got C. got D. get
2. Liu Qian’s performance turned out to be _____ success, making him _____ instant hit.
A. a; the B. a; a C. /; an D. a; an
3. The doctor believed _____ would do you good to have a holiday.
A. that B. this C. it D. one