1 . Hundreds of thousands of volunteers are working hard to deal with the environmental pollution, change the world and make it a better place to live ________. (用适当的词填空)

3 . Students in this class, along with their math teacher, ________________ (独领风骚) in the field of math at present. (根据汉语提示完成句子)

4 . 我们出去还是待在寝室取决于天气。
________ depends on the weather.

5 . The radio signal was sent out ________ a special way so that no one was able to jam it. (用适当的词填空)

6 . The baby is sleeping, so you’d better speak ________a whisper. （用适当的词填空）

7 . Believe it or not, I don’t like the way __________________.
信不信由你，我不喜欢他对我讲话的方式。

8 . They did not have enough staff, and the laboratory ________ which they worked had poor air quality. (用适当的词填空)

9 . Hotels sell service rather than products, or to put it ________ another way, service is their product.(用适当的词填空)

10 . 他们被困在燃烧着的楼房里。
They _______________the burning building.