第一卷（两大题，共55分）
一、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，并在答题卡上将该项涂黑。
1. We can be thankful every day, not just_______ Thanksgiving Day.
A．in B．on C．to D. by
2. - Helen, I heard your bicycle was lost.
- No, not_______. It's_______．She forgot to lock it.
A. me; Kate's B. mine; Kate C. mine; Kate's D. me; Kate
3. Correction does much, but encouragement does_______.
A. more B. less C. most D. least
4. Health experts believe that even a little exercise is far better than_______ at all.
A. none B. little C. everything D. anything
