---I hear you’ve got a set of valuable Australian coins, I have a look? ---Yes, certainly.
Henry,____ Mary and Tom, is coming to China for a visit. Which is wrong?
____ the students likes the paintings. Which is wrong?
Something must be done to prevent our city ____ by thick smoke.
To tell you the truth, I have nothing to do ____ it.
Did you have any trouble ____ the post office?