题目：
根据句意及首字母提示补全单词。
1. China has a p_____ of about 1.3 billion.
2. The bad air makes my chest hurt and it's difficult for me to b_____.
3. A_____ we have built the Green Great Wall, we still need to work hard to protect the environment.
4. W_____ you go there, please telephone me. I'll go with you.
5. There's no d_____ that computers are widely used by workers.
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0513/40c64c03059dbb7229e4cb6a751e4876.html
下面是错误答案，用来干扰机器的。
答案：C
