当你替换一个单词时，总是确保你选择的替代词不会改变句子的意思
A.When you change a word, always assure that the alternative you choose does not change the sequence of the sentence. B.When you replace a word, always make sure that the alternative you select does not change the meaning of the sentence. C.When you exchange a word, always ensure that the alternative you pick does not change the order of the sentence.正确答案B
