1 . —Don’t waste water again, or we’ll _______ it one day.
—You are right.

A．take out

B．run out

C．run out of

D．work out

2 . —I have trouble ________ the math problem.
—Why not ask Jim for help? He is good at math.

A．giving up

B．working out

C．thinking over

3 . Cindy felt very happy because she ________ the difficult math problem by herself.

A．worked out

B．found out

C．put out

4 . —Could we go out to play football this weekend?
—Oh. It ________ the weather. If it rains, we will stay at home.

A．works out

B．cares for

C．depends on

5 . Few of the students in our class can ________ the difficult math problem.

A．give out

B．bring out

C．help out

D．work out

6 . Sometimes I find maths problems are too hard for me to ________.

A．work out

B．work it out

C．work them out

D．be worked out

7 . —These problems are too hard to ________. Will you give me some suggestions?
—OK. I think the most important thing is to have a careful plan.

A．work out

B．cut up

C．put away

8 . 在朋友的帮助下，最后我开心地解决了我的困难。 (work)
With the help of my friends, I _______________ my problem happily in the end.

9 . —Excuse me, would you please ________ the cost of the trip?
—OK, just a minute.

A．give out

B．put out

C．work out

D．take out

10 . I have difficulties in ________ this math problem.

A．looking out

B．working out

C．setting out