He planed to replace the old engine（ ）a new one. A: by B: of C: instead D: for

上述句子的最佳写作英文表述方式为 未知类型：{'label': 'source', 'content': '英语二2015年大作文', 'isMemberControl': 0, 'type': 181} A: To start with, with the ever-growing eagerness to keep up with others, oceans of folks intended to offer thicker and thicker red envelope to kids as gift money, which leads to the high proportion of our expenditures. B: First, with more and more people want to keep up with others, many folks planed to offer thicker and thicker red envelope to kids as gift money, this leads to the high expenditures.