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

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

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

---- What’s that noise?      

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

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

--- At the end of this month.

— My teacher punished me this morning.

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

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.

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

The reason ______ the essay（作文） of the Anhui edition of the 2012 National College Entrance Exam is voted the worst is _______ it makes test-takers at a total loss.

--- Hi, Tom. Any idea where Jane is?

--- She _________ in the classroom. I saw her there just now.