Why is there a boy / girl?And is a silly boy /

Why is there a boy / girl?And is a silly boy / There is a boy in the picture Behind every successful boy,there is a why the boy is ( ) A.cry B.crying Why is the letter D like a bad boy? There ( ) a boy and some apples.A is B are The boy standing there is a classmate of mine.boy后面为什么不加is? There is a boy under the tree,怎样改为疑问句 (a book / the boy / there / reading / over )is my brother There is a boy in the front of me改错 There is a boy under the tree,怎样改为疑问句 There is a boy _(play)basketball on the playground. Is there a boy (na )Bob in your class? There is a boy in my heart ,still什么意思? There is a boy in the（ ） on the wall Is there a boy __(call)David in your class? There is a boy still loved the 的意思是? there is a boy in the drawer 同义句改写