1.If bright sunlight is (聚焦) on dry wood,the wood will start burning.
答案:focused
2.We have (减少) expenses this year.
答案:reduced
3.She plays Taiji to (增强) herself up every day.
答案:build
4.He often makes a(n) (评论) on what I say.
答案:comment
5.The teacher asked me to (画底线标出) the key sentences in the text.
答案:underline
6.In (总结),this was a disappointing performance.
答案:summary
7.Food (生产)has already fallen behind the population growth.
答案:production
