Lots of birds f------ across the sky at the this time of yea

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 of )
__It is very implite of him to do that_________________________ 翻译句子
你能让这只鹦鹉说话吗?
Can you ___make___ this parrot __speak_____?
再问： It is very implite of him to do that 应该是It is very plite of you to do that 还有那个I answered the question ___instead___ __of___ him. 应该也能改成rather than吧？
再答： 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