1 . ________ gardening may be hard physical work, those who love it find it very relaxing mentally.

A．Although

B．Once

C．Since

D．Unless

2 . Many people welcome the chance to do meaningful things, ________they will get no pay.

A．even if

B．as if

C．in case

D．now that

3 . Feeling fearful is healthy ________ it helps you slow down and evaluate risks properly.

A．because

B．until

C．before

D．although

4 . There is a rule in the library that one is required to put the book ______ it is after finishing reading it.

A．what

B．how

C．where

D．when

5 . Man may disappear________ other creatures who became too specialized to survive their environment.

A．as

B．just as

C．as if

D．as have

6 . If you are facing a difficult task, try breaking it into small steps________you can finish it more easily.

A．in case

B．so that

C．even if

D．now that

7 . —Do you know a new shopping mall opened in our town yesterday?
—Yes. Why don’t we pay a visit ______ we have time?

A．since

B．though

C．until

D．unless

8 . Life is full of ups and downs. As we grow, we come to understand the fact that sometimes ________hard we try, things may not turn out as expected.

A．although

B．however

C．as

D．though

9 . We ________ 1000 English words since we ________ to this school.

A．learn, come	B．have learning, came
C．have been learning, come	D．have learned, came

10 . ________ the economy enters a “new normal” and growth slows, China’s economy will rely more on creativity to drive its growth.

A．Although

B．As

C．Before

D．Until