30. He is badly down these days. This sentence probably means _____.
| A．He is seriously ill these days. | B．He is in low spirit these days. |
| C．He fell down and was seriously hurt. | D．He didn’t study hard these days. |
The well-known director, two of________ films won Oscar awards, is said to have retired.
| A．which | B．whom | C．whose | D．his |
Whether you believe it or not, it was________ caused the serious accident.
| A．because of your carelessness that | B．because you were careless |
| C．you were careless that | D．your being carelessness that |
We paid ________ cash in the hope that we can get a 15% _________.
| A．by , count | B．with , account | C．in , discount | D．in , charge |
He is such a clever student _________ everyone likes.
| A．that | B．who | C．whom. | D．as |
In the end , he turned ______history teacher, who had______ good knowledge of history, especially ______ history of ______Ming Dynasty.
| A．a,/,the, a | B．/,a ,the, the | C．/,a, the,/ | D．a, a, the,/ |