1 . Life in the 2020s will be filled with difficulties, but we believe we can ________ any problem.

A．find out

B．look out

C．work out

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

A．worked out

B．found out

C．put out

3 . Life in the 2020s will be full of difficulties, but we believe we can ________ any problem.

A．find out

B．point out

C．work out

4 . You can ________ useless information in the article to make it easier to understand.

A．work out

B．hand out

C．cut out

5 . —I can’t ________ this math problem, because it is too difficult for me.

—Don’t worry. Let me help you.

A．work out

B．take up

C．check out

D．look up

6 . —The math problem is very difficult for me. I can’t ________. Can you give me a hand?
—Sure.

A．work it out

B．work out it

C．work on it

D．work it on

7 . He is busy ________ ________ (算出) the math problems.

8 . To practice the idea of green development, the city of Nanjing ________ voluntary tree planting activities on March 12 every year.

A．finds out

B．works out

C．picks out

D．carries out

9 . —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

10 . 在老师的帮助下，他终于解出了那道数学难题。(work)
He __________ the math problem with the help of his teacher.