5. As a solution, the state has created ____ are called natural reservations, where animals live in conditions similar to those in their natural habitat.

A. that　　　　　 B. how　　　　　　　　 C. what　　　　　　 D. whether

4. Large quantities of food and water, as well as a lot of building materials, _____ to Taiwan from many parts of the world in the last three days.

A. are sent　　　　 B. was sent　　　　　　 C. have been sent　　 D. has been sent

3. -Shall we pay a visit to the Great Wall tomorrow morning?

-_____ it rains.

A. If　　　　　　　 B. Until　　　　　　　 C. Since　　　　　 D. Unless

2. The goals of this project are to promote the commercialization of home-use robots, whose market is smaller than ____ for industrial robots, and to develop safety technologies and standards.

A. it　　　　　　　 B. them　　　　　　　 C. that　　　　　　 D. one

第一节　 单项填空(共15小题；每小题1分，满分15分)

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

1. -Thank you very much for your timely help when I was in trouble.

-______

A. It’s my duty.　　　 B. No problem!　　 C. With pleasure.　　 D. Never mind.