根据汉语提示完成单词。

1. The man gave a lot of money to a medical _______ (研究)．

2. He _______(栓) his horse to a tree by the road just now.

3. People get _______ (紧张) when they go to work the first time.

4. Our teacher asks me to give a _______ (演讲) next Monday.

5. We hope your children grow happily and _______(健康)．

北京某经贸团赴东南亚参加订货会，下列产品最有可能出现在订货合同中的是（  ）

A．棉花、小麦

B．橡胶、椰子

C．牛肉、水稻

D．蔬菜、牛奶