题目内容
根据提示填单词
1.What _____________ (发生) to you yesterday?
2.There will be more ___________(污染)in our city.
3.Look! There are so many ______________(机器) in the factories.
4.These ________ /
/are very famous. Do you know them?
5.Our ___________ /en'v a? 'r?nm?nt/ will be in great danger.
6.He is going to study ________________/'meds?n/ next year.
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