试题 题型：未知 难度等级：

根据句意及汉语提示完成句子。 1. The chemical factories _____ (生产) ter

根据句意及汉语提示完成句子。

1. The chemical factories _____ (生产) terrible gas. 2. Each year people pour _____ (废物) into rivers, lakes and so on. 3. There are _____ (几个) students reading books over there. 4. Do you know he has _____ (参军) for five years 5. Loud noises can cause high _____ (血) pressure as well.