问题
填空题
基本语法。
1. We must protect the water here from____ (pollute).
2. The outside of the earth (make) up of many different plates.
3. Two (three) of the students are girls in our class.
4. People standing on the top of the high mountain breathe much (hard) than the people at the foot of
the mountain.
5. These unwanted things should (take) away at once.
答案
1.being polluted 2.is made 3.thirds 4.harder 5. be taken