1 . —I prefer shutting myself in and listening to music all day on Sundays.
—That’s ______ I don’t agree. You should have a more active life.

A．where

B．how

C．when

D．what

2 . The true value of life is not               but what you have done. (gain)
生命的真正价值不在于你得到什么，而在于你做过什么。

3 . He’s            as a “bellyacher”—he’s always complaining about something.

A．who is known	B．whom is known
C．what is known	D．which is known

4 . Respect is not one-way traffic but mutual, and that might be          we fight back in the trade friction against the USA   .

A．where

B．because

C．why

D．how

5 . Education is ______________ survives when knowledge taught in class has been forgotten.

A．how

B．who

C．what

D．which

6 . Social media paints this rosy picture that everyone else 's lives are perfect,but things are seldom_______they seem.

A．which

B．what

C．how

D．where

7 . I always read newspapers backwards because the back pages are ______ the sport is.

A．that

B．where

C．how

D．what .

8 . If you are addicted to your mobile phone, that’s ______ you should lay it down and be involved in meaningful activities.

A．when

B．why

C．where

D．how

9 . It is generally acknowledged that loving your life is _____ the key to happiness lies.

A．what

B．why

C．where

D．whether

10 . Billions of poor people around the world     1     (depend) on the use of wood for cooking. And as they take more and more firewood from wild areas, they are destroying habitats around the world. Wood collection is one reason why many animals have become endangered.

This is     2     Dr. Metcalf spends each summer in Africa. He wants to teach women and children in villages how to cook with the sun. He helped create Solar Cookers International. It’s an organization that introduces solar cookers to developing countries     3     teaches people how to use them.