It is a ball.____(it)are balls.

It is a ball.____(it)are balls. There is a ball on it.能否改为It's a ball on it. ____ ____is the ball?it is in the box. what is it?it is ball.what is it?it is ball.这是课文句子,我觉得有错,ball前面好像少了a或the. it is a big ball.改为否定句 a isn't ball it It is a sport.People kick the ball with the( ).what is it? ____ ____ of sign is it?it's a warning sign.____ _____of sign is it? It is a ball.when you put it in the baskeyt you win THE ball is200yuan.it is c( ) THE ball is200yuan.it is e( ) Is this ball your?Yes,it's() What's in the box?怎么回答?A.It's a ball.B.There is a ball. What a ____(fun)story it is! It isn't my ball.Whose is it?It's___.A,her B,hers请问选哪个,为什么, ____ fan it is! it is beautiful,____ ____ Is there a ball under the desk?改错回答：Yes it is