16. The river, ______the bank are covered with trees, is very long.
| A．whose | B．which | C．of which | D．which of |
After running for such _____ long time, everyone was out of _____ breath.
| A．不填; 不填 | B．不填; the | C．a; the | D．a; 不填 |
—Do you mind if I shut down the radio?
—_____. The good news will be on the air in a few minutes.
| A．Of course not | B．I’m afraid I do |
| C．why not | D．Yes, just go ahead |
—Well, Toby, I remember that you had a very…how should I say…relaxed attitude toward work at the bookstore.
—__________! I was a model worker!
| A．No way | B．No doubt | C．No wonder | D．No problem |
Several musicians say they consider it the greatest musical composition _______ written.
| A．already | B．once | C．before | D．ever |
Since the recent river pollution in several provinces, people _______ more and more attention to the quality and safety of drinking water.
| A．pay | B．are paying | C．have paid | D．have been paying |