1 . Over the past three ______ (十年), the company has made some efforts to improve the quality of its product. （根据汉语提示完成句子）

2 . Not all art works are d________ in this museum at the same time. (根据首字母单词拼写)

3 . A milkman is a worker who _______ (运送) milk every day. (根据汉语提示单词拼写)

4 . He is _______ (著名的) for his knowledge of science. (根据汉语提示单词拼写)

5 . We are having a d________________(辩论) about this topic. (根据中英文提示拼写单词)

6 . We have a special offer for 10 days, during which you can enjoy a half price d________________(折 扣). （根据中英文提示拼写单词）

7 . The building was completely d_________ by fire. （根据首字母单词拼写）

8 . Getting into the habit of walking for 30 minutes each day will d________(肯定) benefit you. （根据中英文提示填空）

9 . It was the second air ______(灾难) in the place in less than two months. (根据汉语提示单词拼写)

10 . Be d_____________ to do what you like, and you will make it.