Lots of birds flock______ across the sky at the this time of year.He couldn't answer the question,so I answered it.I answered the question ___instead___ __of___ him.同义句你那样做很有礼貌（be polite o...It is very implite of him to do that应该是It is very plite of youto do that还有那个I answered the question ___instead___ __of___ him.应该也能改成rather than吧？哦，开始那个我看错了，以为是没礼貌了下面的那个instead of和rather than是同义词，都是表示不是的意思