EXERCISE l
A. Put a or an before each of the following:
1.         motel (汽车游客旅馆)  2.         unusual approach
3.         honest boy    4.         awkward situation
5.         exit (出口)    6.        urgent message
7.        unique opportunity   8.        extremely exciting film
B．Translate the following into English：
1．一座新办公楼     2．一位旅行社代理人 
3．一位美国科学家     4．一天的郊游
5．一张印度邮票     6．一次心脏病发作   
7．一个先进国家     8．一个有意思的剧本

EXERCISE 2
Fill in the blanks with a or an where necessary:
1.         Telephone is         very important means of communication.
2.         Mothers often tell         small children         stories before bedtime.
3. I`ll pay you        thousand         year. It’s not         enormous salary but after all you are         completely unskilled worker.