题目内容

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.
1.being polluted       2.is made      3.thirds      4.harder   5. be taken
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网