题型：补全对话 题类：真题 难易度：普通
A: Hey, Alice! My parents b me a dog in the pet shop.
B: S great!
A: It's so c and clever that I can't help kissing it and allowing it to sleep in my bed.
B: Oh, you'd better not do like that.
A: Why?
B: Because pets can carry many viruses（病毒）which lead t dangerous diseases.
A: Oh, my God! What should I do then?
B: Don't worry. If youalways give it a a and keep it clean. It'll be OK.
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