按照要求完成下列句子。 1. Mike has some books. (改为否定句) Mike _______ six books. 2. My pen friend lives in England . (对画线部分提问) _______ your pen friend _______? 3. Helen is my friend. Amy is my friend, too. (合并为一句) Helen and Amy _______ my _______. 4. My pen is seventeen yuan. (对画线部分提问) _______ your pen? 5. It's five thirty now. (写出同义句) It's _______ now.