读一读Rex的介绍，将缺失信息的序号填在横线上。
I am Rex. This is my 1．. It’s nice and big. This is a small bed. It’s 2．. There is a yellow desk. There are many books on the 3．. I can do my homework on it. 4． is my toy? It’s under the 5．.
| A．brown | B．Where | C．window | D．bedroom | E．desk |
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