原题:
题型:单项选择-四个选项
________ everyone tries to sort garbage(分类垃圾) like people in Shanghai, our environment will become much better.
| A.As | B.If | C.Because | D.Since |
题目考点:条件句的用法
| A.As | B.If | C.Because | D.Since |
题目考点:条件句的用法
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