When the parents arrived at the hall, the students _______ their projects.
| A．have finish | B．had finished |
| C．finished | D．are finishing |
When I came in, I heard them ________ English.
A. read B. reading C. reads
He preferred _________ rather than _______’
A.watch TV; do homework
B. to watch TV; to do homework
C. to watch TV; do homework.
The teacher said the earth _______ round the sun.
A. goes B. went C. Go
They succeeded in ________ the exam.
A. pass B. passing C. Passed
You should avoid ________ there alone at night.
A．to go B. going C. Goes