—May I have another chocolate?
—Yes, of course.___________.
| A．Take it yourself | B．Eat it, please |
| C．Help yourself | D．Have it yourself |
（2013·北京卷) --- So what is the procedure?
--- All the applicants before a final decision is made by the authority.
| A．interview | B．are interviewing |
| C．are interviewed | D．are being interviewed |
During the last three decades, the number of people participating in physical fitness programs___ sharply.
| A．was increasing | B．has increased | C．had increased | D．will be increasing |
If we _________ now to protect the environment, we’ll live to regret it.
| A．hadn’t acted | B．haven’t acted | C．don’t act | D．won’t act |
When I first met Bryan I didn’t like him, but I ________ my mind.
| A．have changed | B．change | C．had changed | D．would change |
He was unhappy when he sold his guitar.After all, he ________ it for a very long time.
| A．has had | B．had had |
| C．has | D．had |