1 . 听下面一段独白，回答以下小题。
1. Where is Alberta located?

A．In eastern Canada.

B．In western Canada.

C．In central Canada.

2. When did Alberta become an official province of Canada?

A．In1867.

B．In1905.

C．In1950.

3. Which products of Alberta have a big market around the world?

A．Crops.

B．Wool.

C．Beef.

4. What is the weather usually like in Alberta in the winter?

A．Snowy.

B．Rainy.

C．Warm.