Time________, I can have done it better.
–This summer is very hot. --Yes, but it’s not __________ as hot as last summer.
Our teacher entered the classroom, __________.
–What do you think the noise was? --It ___________ a cat.
Do you know the _________ of the saying I just quoted?
He is very stubborn, it is impossible to argue _____________ what he doesn’t want to.