1 . It seems that pigeons have a compass inside them that tells them _____ they need to go. That is why they never get lost.

A．what	B．where
C．how	D．which

2 . He accepts the idea ______ successful people spend a lot more time reading than watching TV, and he has decided to read for an hour every day from now on.

A．that	B．why
C．how	D．which

3 . He declared himself to be an expert in astronomy, but actually he knows nothing about the subject and _____ he knows about it is out of date.

A．that	B．what
C．how	D．when

4 . What is the address of the company _____ advertisement we noticed the other day?

A．which	B．where
C．what	D．whose

5 . —When choosing clothes, you focus on the price while I think more about the design.
—That’s _____ we are different from each other.

A．how	B．what
C．which	D．where

6 . Even if you are not familiar with our city, the road signs can show clearly the direction _____ you are driving.

A．of which	B．to which
C．in which	D．for which

7 . There is a lot of wear in this material, but it has a disadvantage _____ it can fade easily in strong sunlight.

A．which	B．that
C．where	D．when

8 . Those successful deaf dancers think that dancing is an activity _____ sight matters more than hearing.

A．when	B．where
C．which	D．whose

9 . You know that little Italian restaurant — the one _____ I mentioned in my letter? Well, it’s just amazing and I hope we will get a chance to have dinner there sometime.

A．where	B．that
C．as	D．when

10 . The TV forecasts _____ there will be a storm this evening, so I advise you to refuse Ann’s invitation to the party and stay at home.

A．which	B．that
C．whether	D．when