Unit 13 We are tryin g to save the earth!
Section B (1a—2b)
Ⅰ. 根据句意及所给首字母提示，补全句中所缺单词。
1. He walked through a wooden g into the field behind his house.
2. Many kinds of m are used t o make the parts of this machine.
3. This painting is one of Matisse’s greatest w .
4. The milk b is empty. Who drank up the milk?
5. George Washington was the fir st P of the United States.
