句型转换。

1.There are many beautiful flowers in the garden. (就划线部分提问)

   ____________ in the garden?

2.There is a bookcase in my study. (变一般问句）

   ____________ in your study?

3.There is a soccer ball and a basketball on the floor. (就划线部分提问)

  ____________ on the floor?

4.My new dress is in the wardrobe.

  ____________ your new dress? (就划线部分提问)

5.There are some big trees behind my house. (就划线部分提问)

  ____________ big trees?

当循环队列非空且队尾指针等于队头指针时，说明循环队列已满，不能进行入队运算。这种情况称为______。