1 . Jane moved aimlessly down the tree-lined street, not knowing ________ she was heading.

A．why	B．where
C．how	D．when

2 . Police have found ________ appears to be the lost ancient statue.

A．which

B．where

C．how

D．what

3 . His writing is so confusing that it’s difficult to make out ________ it is he is trying to express.

A．that

B．how

C．who

D．what

4 . We must find out ____ Karl is coming, so we can book a room for him.

A．when	B．how
C．where	D．why

5 . The exhibition tells us _____we should do something to stop air pollution.

A．where	B．why
C．what	D．which

6 . It is not always easy for the public to see ________ use a new invention can be of to human life.

A．whose

B．what

C．which

D．that

7 . The message you intend to convey through words may be the exact opposite of ______ others actually understand.

A．why

B．that

C．which

D．what

8 . Reading her biography, I was lost in admiration for _____Doris Lessing had achieved in literature.

A．what	B．that
C．why	D．how

9 . （2014﹒北京）Some people believe ___________ has happened before or is happening now will repeat itself in the future.

A．whatever	B．whenever
C．whereever	D．however

10 . I truly believe ______beauty comes from within.

A．that

B．where

C．what

D．why