—Look at these tracks. It __________ be a wolf.—It needn't be. It ___________ be a fox.
If you _______ this newspaper, you’ll get an extra magazine.
What do you think of the suggestion _______ he offered us _______ we go to New York for our holiday?
Bruce, ______ headmaster of our school, was elected by voting and other leaders were chosen in ______ same way.
It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it.
I would have attended your birthday party last night but for the fact that it at that time.