The doctor has devoted most of his time to ___________ the patients.
| A．look after | B．looking after |
| C．looks after | D．looked after |
My sister with her boyfriend ______ England. You can call her next week.
A. have gone to B. has gone to C. have been to
Teenagers always like to do _____ from others.
A. something different B. something new C. different something
–Take away your balls, they _____ the whole room.
-Ok, Mum.
A. take up B. take off C. use up
_____ of this week, I will fly to Shanghai.
A. By the end B. At the end C. In the end
The teacher shouldn’t make the student _____ all the class.
A. to stand B. stand C. to listen