按要求完成下列各句。(10分)
（1）This is my computer.(变为一般疑问句)
________ this ________ computer?
（2）It's 5：00．(就画线部分提问)
_______ ________ is it?
（3）I have eight clocks.(就画线部分提问)
________ ________ clocks do you have?
（4）Is this your classroom? (作肯定回答)
________，it ________．
（5）It's red．(就画线部分提问)
________ ________ is it?