选择括号内合适的词，并用其适当形式填空。

(crowd, nine, beside, pick, knife)

1. We're in the _________ grade now. And we will have a very important exam in June.

2. In Britain people not only use __________ to cut things, but also use them to have meals.

3. —Bob, have you _________ up your things on the floor?

   —Not yet, Mum. I am still busy with my homework.

4. On weekends, the supermarkets are usually _________ with people.

5. —Excuse me, would you tell me where I can buy some shampoo?

    —Sure. _________ the post office, there's a small supermarket.

下列关于人畜共患病的描述，错误的是（）

A、同一种病原菌可同时引起动物和人类致病的某些传染病

B、其中绝大多数是以动物作为传染源

C、可通过直接接触病畜或其污染物而感染

D、不可通过媒介动物叮咬而感染