Ⅰ. 单项选择(30分)
1. —Who is _______ girl over there?
—She is an exchange student from America.
A. a B. the C. an D. /
2. I had an opportunity to be a volunteer at the local hospital, but I _______ it because I had to go back to school.
A. took B. made C. missed D. had
3. —May I borrow your dictionary? _______ is at home.
—Sure, here you are.
A. My B. I C. Mine D. Me
