环保卫生话题词汇 — 英语选择题

根据句意和首字母提示，写出本单元所学的环保卫生词汇：We…

In British English, unwanted things that people throw away are called ___.

To keep the air clean, we should plant more t____ in the park. Which word is mis…

After everyone puts the rubbish in the bin, the park is not dirty. It is ___.

根据句意和首字母提示，填入本单元所学的环保卫生词汇：1.…

根据句意，用 have 或 has 加括号中动词的适当形式填空（过去…