一、单项填空 在A、B、C、D四个选项中, 选出可以填入空白处的最佳选项。
(本大题共14分，每小题1分)
1. ________ dog is ________ useful animal and ________ honest friend as well.
A. A; a; an B. A; an; a C. The; an; a D. The; an; an
2. Stop smoking, ________ your health will get worse soon.
A. and B. or C. but D. so
3. ---How far is it from your school to Lake Taihu?
---It’s about ________ drive.
A. forty minute B. forty minutes C. forty minutes’ D．forty-minutes
