It has been announced that students _______ remain in their seats until all the papers have been collected.

The sudden death of Kim Jong-il(金正日) had a short-term effect on Asian trade, _______the dropping of stocks（股票） in some Asian countries.

— My teacher punished me this morning.

—Why? ______ I know, you’ve done nothing wrong,

--- When will your school _______ for the summer holiday?

--- At the end of this month.

---- What’s that noise?      

---- Oh, I forgot to tell you. The new machine ______.

______ I’m tired of life here, I have been considering trying my luck in another city, but I haven’t decided yet.

People try to avoid public transportation delays by using their own cars, and this ______ creates further problems.

Dr Yuan Longping grows ________ is called super hybrid rice, _________ has a high output.

— Do you mind if I keep pets in this building?   — _______ .

“I think the tie beautiful,” I said, “A man can never have ______ many ties.”