As far as we know, half of Canadian teenagers do not get enough sleep on school nights, _____?
| A．do they | B．don’t they |
| C．don’t you | D．isn’t it |
I don't believe we've met before,I must say you do look familiar.
| A．therefore | B．although | C．since | D．for |
— Hi, what’s the rush?
— I am off to the library right now to a seat for my roommate!
| A．preserve | B．order | C．reserve | D．provide |
Children in that kindergarten are sometimes asked to sit on their hands ______listening to the teacher.
| A．while | B．though | C．after | D．during |
—How do you feel about those who enjoy extreme sports?
—
— Same here. I think they’re life-threatening sports.
| A．Sure. They are my favorite. | B．Sorry, I disagree with you |
| C．I don’t think it’s your business. | D．I think they are crazy. |
According to agreement, the electric car will be built at Great Wall Motors’ Plant, with first model to be made in 2014.
| A．an ; the | B．an ; a | C．the ; a | D．the ; the |