34. ______ is even more important is ______ as the earth cooled down, water began to appear on its surface.

　 A. What, that　　　　　 B. That, what　　　　　 C, That, that　　　　　 D. What, what

33. After the new technique was introduced, the factory produced ________ cars in 2009 as the year before.

　 A. as twice more　　　 B. as many twice　　　 C. more than twice as many　 D. twice more than as　

32. Rather than ______ the plane all the way, they decided _______ to Vancouver.

　 A. taking, flying　　　　 B. take, to flying　　　 C. take, to fly　　　　 D. to take, to fly

31. He has no money nor friends here. That’s why he ______ sleep in the street.

　 A. must　　　　　　　　 B. has to　　　　　　 C. should　　　　　 D. may

30. It was said ____that was _____ he succeeded in running his business.

　A. that, what　　　　　　 B. that, that　　　　　 C. what, how　　　　 D. that, how