Though _______ to see us, the professor gave us a warm welcome.
| A．confusing | B．was confused | C．confused | D．being confused |
第二部分英语知识综合运用
第一节，从A，B，C，D四个选项中选出可以填入空白处的最佳选项并在答题卡上，将该项涂黑.
（共15小题，每题1分,满分15分）
Someone reported observing a stranger ____________ his house .
| A．enter | B．to enter | C．to entering | D．entered |
34. He made a mistake, but then he corrected the situation _ it got worse.
| A．until | B．when | C．before | D．as |
33. E-mail, as well as telephones, ____ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |
31. I was just about to go to bed last night ______ the telephone rang.
| A．while | B．when | C．as | D．before |
30. The world is ______ seven continents and four oceans.
| A．made up of | B．make out of | C．made from | D．made in |