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 . What puzzles Lily's friends is ________ she always has so many crazy ideas.

A．whether

B．why

C．what

D．when

3 . “Every time you eat a sweet, drink green tea.” This is _____ my mother used to tell me.

A．what	B．how
C．that	D．whether

4 . He studied hard and later became a well-known writer, which was ______ his father had expected.

A．why

B．how

C．that

D．what

5 . The limits of a person’s intelligence, generally speaking, are fixed at birth, but ______ he reaches these limits will depend on his environment.

A．whether

B．where

C．that

D．why

6 . （2018·江苏）By boat is the only way to get here, which is _______ we arrived.

A．where	B．when
C．why	D．how

7 . （2018· 北京）This is _________ my father has taught me—to always face difficulties and hope for the best.

A．how	B．which
C．that	D．what

8 . （2018· 北京）Without his support, we wouldn’t be _________ we are now.

A．how	B．when
C．where	D．why

9 . One reason for her preference for city life is ___________ she can have easy access to places like shops and restaurants.

A．that

B．how

C．what

D．why

10 . The last time we had great fun was __________ we were visiting the Water Park.

A．where

B．how

C．when

D．why