【简答题】听下面一段材料,回答第1-5小题。 1. How many kinds of pollutions are mentioned in the passage? [ ] A. 2 B. 3 C. 4 2. pollution makes us become angry more easily. [ ] A. Air B. Water C. Noise 3. Most air poll...
【简答题】Questions 1-8 Choose the correct letter, A,B or C. 1. How long have Sharks lived in the world’s oceans. A. For hundreds of years. B. For thousands of years. C. For millions of years. 2. How many kinds...