Question

【题目】The rivers are dirty. We should _______ next week.

A. clean it upB. clean up itC. clean them upD. clean up them

Answer 1

【答案】C

【解析】

句意：河流很脏。我们下周应该把它们清理干净。考查人称代词宾格。短语clean up：把…弄干净，打扫，清扫，清理；up是副词，代词it或them应放在动词或介词后面，故当接代词it或them时应放在动词clean和副词up中间；故排除B和D。本句中指代上文The rivers（复数）可知用them指代；故选C。