Who's____boy in ____sweater?

____sweater is this怎么填空 who's in blue who stays in your Who lives in China?和Who live in China?区别 Who live in Tokyo?还是 Who lives in Tokyo? Who inrented paper in China? who a birthday in February? someone who is in a who invented paper in china? Who in the past about Who can lucky in my ---Who was in the classroom?