A dog ran in front of my mother’s car and she __________ stop very quickly.

1. A.
   ought to
2. B.
   had better
3. C.
   used to
4. D.
   had to

A dog ran in front of my mother’s car and she __________ stop very quickly.

       A. ought to    B. had better C. used to      D. had to

A dog ran in front of my mother’s car and she __________ stop very quickly.

（2006北京崇文模拟）A dog ran in front of my mother's car and she ________ stop very quickly.

1. A.
   ought to
2. B.
   had better
3. C.
   used to
4. D.
   had to