Ⅰ.单项填空
1. — Are you listening to me?
— Sorry. I ______ the traffic accident happening yesterday.
A. have thought about
B. was thinking about
C. having been thinking about
D. will think about
2. Jack forgave his deskmate, for he caused the damage ______.
A. unintentionally B. deliberately
C. meaningfully D. determinedly
3. ______ every day, our web provides readers with the latest news.
A. To update B. Update
C. Updated D. Updating
4. Only ______ in this way can the coffee taste proper and savory.
