He seems at little nervous中,为什么要加 at He seems a little nervous错误吗?

he seems at little nervers这句对么 He seems at little nervous中,为什么要加 at He seems a little nervous错误吗? He seems to have a zoo at home.改写It seems that ______________. he often______(shout)at his little dog. there seems to be little chance of sexes going far out of balance at all 英语翻译1.It seems that he is not interested in selling2.He went there to read a little at a time any books at all3.He couldn't find the book from its usual place and was leaving4.I put it there so as not to be sold out5.He left the student by hi He knows _____ Japanese but he can write _____Japanese.A.little;inB.a little;inC.a little;atD.little;at IT seems that he is good at swimming?(同义句)_ __ __ ___good at swimming. He seems at little nervous这个地方为什么要用at呢?用a 不是也可以么?不太明白这个at在这的意思但是我刚搜了下，原句意思也是他显得有点紧张。还有这句：He strolls about the town about在这的用法也 英语Hobo与Eddie的对话9A 顺便帮我看看写的其他的对不对Eddie seems a little worried.He tells Hobo that he has a pronlem.What is it?Eddie asks Hobo to look at his stomach and says he is get fat.Hobo thinks that he eat too much.So Hobo He seems u____to swim he seems to worried, seems ,results,that,is,it,angry,at,he,the,怎么造句 the,only,he,at the picnic,little,was,kid He helped this little boy ______ his father at last Look at the little boy.he's（ ）a bike. he（ ）well. （ ）he It seems miss you a little. He seems _______(look) happy.