一、选择题练习
1. Who _____ over there now?
A. singing B. are sing C. is singing D. sing
2. Its eight oclock. The students _____ an English class.
A. have B. having C. is having D. are having
3. Listen! The baby _____ in the next room.
A. crying B. cried C. is crying D. cries
4. Look! The twins _____ new sweaters.
A. are wearing B. wearing C. are wear D. is wearing
5. Dont talk here. Grandparents _____.
A. is sleeping B. are sleeping C. sleeping D. sleep
6. Tom is a worker. He _____ in a factory. His sisters _____ in a hospital.
A. work/ work B. works/ work C. work/ works
7. Who _____ English best in your class?
A. speak B. speaks C. speaking