一、单项填空（15分）
1. –Where ______ you yesterday?
--I ______ at my grandpa’s home.
A. are; am B. were; am C. were; was D. are, was
2. Last summer my family went to Hainan ______ vacation.
A. with B. on C. from D. at
3. -- ______ do you exercise, Tina?
--I exercise every day.
A. How much B. How many C. How long D. How often
