1 . Life is a journey with many problems, and it is impossible to ________ all problems by ourselves. That’s why we need support from others.

A．turn out

B．work out

C．find out

D．put out

2 . Don’t speak to us. We are busy ________ our project.

A．work hard

B．working hard

C．working on

D．work out

3 . I find it useless to ________ because sleepiness will affect our learning efficiency next day.

A．stay out

B．stay up

C．work out

D．cheer up

5 . 最终，他成功地算出了这道数学题。
___________________________________________

6 . I can ________ these problems ________ my own.

A．work out; by	B．work out; on
C．work to; to	D．work with; of

7 . 你永远不知道昨天我们解决这个问题有多么困难!
You never know how much ______________________________ the problem yesterday!

8 . _________ your behavior. I think you should learn how to control yourself.

A．Work out

B．Take care of

C．Give up

D．Pay attention to

9 . —Excuse me, would you please ________ the total cost of the trip for me?
—OK, just a minute. It’s $200 all together.

A．give out

B．work out

C．hand out

10 . —Do you like watching horror films?
—No. They are full of mysteries at first, but usually _______ to be quite silly.

A．work out

B．break out

C．turn out

D．stay out