阅读下面短文，掌握大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项。

Look at the picture. I'm the dog. My name is Mike. The man is Rick. He can't 1. I'm his guide dog (导盲犬). Rick works at a radio station. He 2about sports with people. He loves his 3. Rick loves singing and playing the 4 . Sometimes he even teaches me to play the guitar. But I can't do it.

I never 5 Rick. I go everywhere with him. Some people are 6of me. I'm big and black, 7 they think I'm dangerous (危险的). But I'm not.

I'm very friendly. Sometimes people don't let me 8 the bus or the subway.

And they don't let me go to the stores, 9. Why? Because I'm a dog? I'm not happy about it.

It's my 10 to let all people know about my work and be nice to me. Can it come true?