1 . George always does his best in school, and that’s ______ I like about him.

A．where

B．why

C．how

D．what

2 . With time going by, we have come to realize that creativity is       it takes to keep a nation highly competitive.

A．what	B．how
C．why	D．that

3 . Energy, passion and a burning desire are, you see, ________ true learning takes.

A．that	B．what
C．how	D．which

4 . —I rang you at about nine，but there was no reply．
—Oh，that was probably        I was seeing the doctor．

A．why

B．when

C．what

D．that

5 . ____ the flight to Beijing will be delayed is ____ I’m especially worried about.

A．If; what

B．Whether; that

C．When; that

D．Whether; what

6 . I’m afraid he’s more of a talker than a doer, which is ________he never finishes anything.

A．that	B．when
C．where	D．why

7 . You are saying that everyone should be equal, and this is _______________ I disagree.

A．why	B．where
C．what	D．how

8 . —You see，I’m poor in maths，you are not good at English，and...
—That’s________we should help each other.

A．when

B．where

C．how

D．what

9 . Why not try your luck downtown, Bob? That’s __________the best jobs are.

A．where

B．what

C．when

D．why

10 . As John Lennon once said, life is ________ happens to you while you are busy making other plans.

A．Which	B．that
C．what	D．where