— “May I speak to your manager Mr. Williams at five o’clock tonight?”— “I’m sorry. Mr Williams ________ to a conference by then.”

Let’s clean our classroom, _____?

—What do you think of Sam, the newcomer?     —Well, he talks as if he ________ everything.     

— It’s raining heavily and we can’t go climbing today.— If only the weather _______ fine.

—I didn’t attend the lecture yesterday.—I ______, either, if my mother hadn’t reminded me.