原题:
题型:单项选择-四个选项
A smile costs ________ but it makes people warm. Why not smile at the world?
| A.nothing | B.something | C.anything | D.everything |
题目考点:词汇搭配与句意理解
| A.nothing | B.something | C.anything | D.everything |
题目考点:词汇搭配与句意理解
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