99. If you study harder, you will catch the others in the class.
| A．up | B．up with | C．up of | D．To |
An athlete can’t play balls well without severe ______.
| A．exercise | B．teach | C．education | D．training |
I ______ the time ______ so quickly.
| A．didn’t realize; had passed | B．don’t realize; passed |
| C．haven’t realized; passed | D．hadn’t realized; had passed |
______ terrible life the people in the mountains lived at that time！
| A．What | B．What a | C．How | D．How a |
Our teacher lives in a poorly decorated apartment, ______ the south.
| A．that window opens | B．the window of which opens to |
| C．whose window open to | D．the window of it opens to |
I was about to leave my house______ the telephone rang.
| A．while | B．as | C．when | D．and |