【单选题】

当你替换一个单词时，一定要确保你选择的替代词不会改变句子的意思。

A、When you try to change a word, make sure that the substitute you choose doesn't replace the meaning of the sentencE.
B、Make sure that the chosen replacement word will not vary the implication of the sentence if you replace a worD.
C、When you replace a word, always make sure that the alternative you select does not change the meaning of the sentencE.