1. –Mimi knows so much about the earth!
–Yes, you know she is only _______ eight-year-old girl.
A. a B. an C. the D.不填
2. –He is a doctor and his brother is a doctor, too.
–You mean both he and his brother________ doctors, right?
A. is B. be C. are D. was
3. –Please remember _________the light when you leave the room.
–OK, I will.
A. to turn off B. turning off C. to turn on D. turning on
4. –_______will the new school be finished?
–In two years.
A. How long B. How far C. How often D. How soon
