The sun was already beginning to sink. The air was somewhat bitter. It was Robert's 12th birthday. But Robert was walking home alone with his eyes focusing on his worn-out shoes.Kids after school were riding by in twos and threes, ringing their bicycle bells merrily. Robert didn't raise up his head, but he knew clearly that those guys were wearing big smiles on their faces, and that the strings of their bike wheels were shining in the golden sunlight. "How lucky they are!" Robert thought to himself. He admired everyone who had his own bike. He had dreamed many times that he was one of those who were on their bikes to and from school. He really wanted a bike, especially as a gift for his 12th birthday. However, Robert was clear that his family couldn't afford it. His parents worked hard only to meet their daily life need.Fortunately, the family lived happily together regardless of the poor condition. Robert should be satisfied with it. But he just couldn't help feeling sad about not being able to own a bike.
Soon the sun disappeared from nowhere and the street lamps were on, casting Robert's figure on the ground. Looking down at his moving shadow, Robert stopped his steps suddenly. He stretched out(伸出) both of his arms with his hands holding something tightly, and then raised his right leg and left leg in turn to push himself forward. Definitely, the figure on the ground did as Robert did. It seemed that he was riding a bike. A brand new black handsome bike! A bike that Robert had been dreaming of. The imagination excited and delighted Robert a lot. He sped up his imaginary bike towards his home happily. The air became sweet and gentle.
注意：
1.续写词数应为150 左右；
2.请按如下格式在答题卡的相应位置作答。
When Robert got home, the house was dark and it seemed nobody was there.
Robert rushed excitedly to the yard only to find an old gray bike.
