Mary _________ as a volunteer teacher for 10 years.
We did a survey _____ our readers. [ ]
What are you going to be when you grow up?-I’m going to be _____ English teacher in ______ university.
If you can’t decide which of the two novels to borrow,why don’t you take________? —I won’t read them this month.
The bread _________ delicious. Could I have some more?