一. 单项选择（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. — I guess you want to go play tennis. — __. That's exactly what I was thinking too.

2. I __ to send Peter a gift to congratulate on his marriage, but I couldn't manage it.

3. A study shows the students who are engaged in after-school activities are happier than __ who are not.

4. __ to think critically is an important skill today's children will need for the future.

5. __ all the problems, several of the players produced excellent performances.

6. — My son got a full scholarship to his dream university! — Wow, __ ! What's he going to study?

7. We can observe that artificial intelligence has already made a(n) __ on our lives in many ways.

8. Amy, as well as her brothers, __ a warm welcome when returning to the village last week.

9. Kate heard a man's voice in the background, but she could't __ what he was saying.

10. Most colleges now offer first-year students a course specially __ to help them succeed academically and personally.

11. Their child is at the stage __ she can say individual words but not full sentences.

12. The professor warned the students that on no account __ use mobile phones in his class.

13. Tom is so independent that he never asks his parent's opinion __ he wants their support.

14. The workers were not better organized, otherwise they __ the task in half the time.

15. A dog's eating habit requires regular training before it is __ established.