—Waiter, what about my coffee? I______ for over 10 minutes.
—Sorry, sir. It will just be a moment
| A．am waiting | B．was waiting | C．had waited | D．have been waiting |
When changing lanes , a driver should use his turning signal to let other drivers know .
| A．he is entering what lane | B．which lane he is entering |
| C．he is entering which lane | D．which lane is he entering |
you may have , you should gather your courage to face the challenge .
| A．However a serious problem | B．Whatever a serious problem |
| C．However serious a problem | D．No matter how a serious problem |
We last night , but we went to the concert instead .
| A．must have studied | B．should have studied |
| C．could have studied | D．studied |
I’m sure that your letter will get attention . They know you’re waiting for the reply .
| A．continued | B．immediate | C．careful | D．general |
The house rent is expensive , I’ve got about half the space I had at home and I’m paying
here .
| A．as three times much | B．as much three times |
| C．much as three times | D．three times as much |