Question

  Alice, bent ______ losing weight, increased the time of exercise to three hours______ a time.

1. A.
   on; in
2. B.
   on; for
3. C.
   with; for
4. D.
   with; at

Answer 1

B
考查固定短语。Be bent on热恋于;for a time暂时，一度；at a time一次。.句意：热恋于减肥的Alice,一度把锻炼的时间增加到三个小时。