She hurriedly left the room without saying anything as if ____.
The doctor is skilled at treating heart trouble and never accepts any gift from his patients,so he has a very good________.
—Look! Everything here is under construction.—Oh, has the building once __________ for exhibition been pulled down, too?
There are still a few jobs to __________ so we cannot be released for the time being.
Our company has a new system to help __________ the best service __________ the customers.
It is in Qingdao __________ you're going to pay a visit to __________ this kind of washing machine is produced.