–Have you heard of the big fire last night? --Yes. The firemen struggled against it for about 35 minutes and _______ the fire at last.
The teacher told the students _____in class.
What would you like to _____us about your hometown.
---Must I return the magazine to you right now, Sandy?---No, you _____.You may keep it until next Wednesday.
I don’t know if he ______ me. If he ______ me, I won’t go to the party.
A teacher may also make a mistake if he or she is not _______.