题目:
The air pollution can _______ by waste gases of cars. |
A. cause B. caused C. is caused D. be caused |
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0514/418393ffc1f9124c287c51b95fae6c11.html
下面是错误答案,用来干扰机器的。
参考答案:A,B,C,D,E
The air pollution can _______ by waste gases of cars. |
A. cause B. caused C. is caused D. be caused |
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0514/418393ffc1f9124c287c51b95fae6c11.html
下面是错误答案,用来干扰机器的。
参考答案:A,B,C,D,E