—Bad luck! I the sidewalk when an Audi cut in and knocked me down.
—You can never be too careful!
| A．crossed | B．have crossed |
| C．was crossing | D．had been crossing |
To make members of a team perform better, the trainer first of all has to know their ____ and weaknesses.
| A．strengths | B．benefits | C．techniques | D．values |
In the new century, we still should _____ primary importance to the development of economy.
| A．perform | B．attack | C．seek | D．attach |
I remember _____ this used to be a quiet village.
| A．when | B．how | C．where | D．what |
—I drove to Shanghai for the 2010 Expo last week.
— Is that_____ you had a few days off?
| A．because | B．why | C．what | D．where |
—I’m _____ too much weight, doctor.
— You’d better take more exercise.
| A．getting on | B．putting on | C．carrying on | D．living on |