691. ___we need now is energy.

　　 A. That　 B. Whether　 C. Which　 D. What

690. ___discouraged me most was that he failed in the exam again.

A.That　 B. Which　 C. Why　 D. What

689.This is ___I have seen in the restaurant.

　　 A. that　 B. which　 C. how　 D. what

688. ___he said is right and perfect.

　　 A. That　 B. What　 C. Which　 D. X

687. I believe ___he will win .

　　 A. that　 B. which　 C. what　 D. when

686. It’s clear ___he is tall and strong.

A.which　 B. what　 C. when　 D. that

685. ___he was late made us angry.

　　 A. That　 B. Which　 C. Who　 D. What

684. ___he really means is that he disagrees with us.

A. What　 b. That　 C. Why　 D. If

683. There is so many kinds of tape-recorders on sale that I can’t make up my mind ____to buy.

　　 A. which　 B. what　 C. how　 D. where

682.Is this the house ___Shakespeare was born ?

　　 A. at where　 B. which　 C. in which　 D. at which