As you know, the output of cars in 2010 is five times _______ it was in 2000 in the factories across our country.
—_______will you come back home from vacation? —In two weeks.
—What ______ when the earthquake happened on May 12th ? —Er, I was having a geography class in the classroom. A. are you doing B. did you doC. were you doingD will you do
My parents will go there by taxi because it is raining____________.
Tom is very modest. He never ___________ before his friends.
—What’s your ________? —I like collecting stamps.