The number of students in Class Seven ____ fifty-six, and a large number of them ____Jay Chou.

— How much is this type of cars?— It’s not dear. 11,000 dollars           enough．

------ Why does the lake smell terrible? ------ Because large quantities of water _________.

The number of people present at the meeting ________ about 1000, a large number of whom ________ experts from abroad. 

An American scientist and writer _______ coming to give us a lecture on English  learning methods when he visits our school.