问题 填空题
用方框中所给单词的适当形式填空。
nod   use   care   prevent    excellent
1. We should use both sides of paper and _______ plastic bags.
2. Forests can _______ the water from washing the earth away.
3. I asked Mrs. Wang if she would help. She agreed and _______.
4. Qian Xuesen is one of the most _______ scientists in the world.
5. The more _______ you describe it, the more easily we can understand.
答案

1. reuse  2. prevent  3. nodded  4. excellent  5. carefully

单项选择题 A1/A2型题
单项选择题