一．单项填空
1. —Would you like to go to the concert with me?
—I’d love to, ________I’m afraid I have no time.
A. so B. or C. and D. but
2. I bought________ alarm clock last week.
A. a B. an C. the D. /
3. Mary was lost and finally________ the police for help last Sunday.
A. looked B. visited C. called D. ran
4. The teacher came in while Ann was________ her purse in the classroom.
A. looking for B. finding
C. finding out D. seeing
5. —I phoned you at 5: 00 yesterday afternoon, but nobody answered me.
—Sorry, I________ the flowers in the garden at that time.
A. was watering B. am watering
C. water D. will water
