2017-2108学年人教版 必修六 Unit 5 The power of nature-Learning about language(共56张PPT)
2017-2108学年人教版 必修六 Unit 5 The power of nature-Learning about language(共56张PPT)第3页

2. The car drew up next to the side of our car and the driver waved to us. 3. The scientists were studying carefully to see how successful the experiment is.

alongside

The scientists were evaluating the experiment