一、选择填空（共25小题：每小题1分，满分25分）
A)单项填空请认真阅读下面各题，然后从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. - Do you have _______QQ number.
- No. Can you tell me how to get_______?
A. a; it B. the; it C. ／; one D. a; one
2. - What happened to her ________that cold winter evening?
-I don't know, and I'm also curious _______it.
A.／; of B. in; about C. on; about D. on; for
3. - Mr Smith, would you please speak a little more_______?
- Sorry. I thought you could follow me.
A. loudly B. slowly C. clearly D. politely
4. - Now we can easily order train tickets online.
- Yes, but you must be as _______as possible about the correct websites.
A. careful B. aware C. serious D. smart
