按要求改写下列各句，每空一词。

1. You can drink some tea. (改为祈使句)

     ______ some tea, ______.

2. They need one teaspoon of cinnamon. (对画线部分提问)

    ______ ______ cinnamon do they need?

3. We like tomatoes. (改为一般疑问句)

     ______ you ______ tomatoes?

4. Check your answers again. (改为否定句)

    ______ ______ your answers again.

5. The pizza is very delicious. (对画线部分提问)

    ______ do you ______ the pizza?

牌号为1A85的铝母材属于（）。

A.纯铝

B.铝锰合金

C.铝镁硅合金

D.铝镁合金