tom and jim is from america这句哪里错了?

tom and jim is from america这句哪里错了? Jim and Jane are from America哪里错了 jim and jane are from America哪里错了? Is sam and jim from America 改病句 哪里错了? jim and jane are form america哪里错了 a,America,Jim,student,from,is连词成句 Tim and Jim are（）from America Does Tom and jim want to write postcards?这句哪里有错误 tom is talking with jim about football match 同义句 tom and jim Are everyone here now?---no,Jim and Tom aren’t here哪里错了? Tom is from America and can't speak English well and so_____ How wide is America?哪里错了