Question

John hadn’t been able to quit smoking at once; he had to control his smoking desire      .

1. A.
   more or less
2. B.
   by and by
3. C.
   little by little
4. D.
   now and then

Answer 1

C
词组辨析;A. more or less或多或少B. by and by逐渐的C. little by little一点一点的D. now and then时而，句意是：约翰不能立刻戒烟，他不得不一点一点的控制抽烟的欲望。所以选C。