Complete the sentences with the proper forms of the words in the box.

contrast，protect ，preserve ，balance，proposal，likely，contribute ，conduct ，donate ，prevent

（1）How do they food？
（2）Are you for or against his ？
（3）But if you do this，the friendship will die.
（4）She made the of this picture with that one.
（5）What we could do is to some money for them.
（6）Your value is not what you possess，but what you .
（7）Now we have a of males and females in one class.
（8）We can do nothing to this disease （from） spreading.
（9）We an investigation into the issue，but we got no result.
（10）What do you think we have to lose if we fail to our cultural heritage？

【考點】名詞詞義辨析；動詞詞義辨析；形容詞詞義辨析．

【答案】preserve；proposal；likely；contrast；donate；contribute；balance；prevent；conducted；protect