同义句转换

l. I can't wait to visit Beijing.  

I'm _____ _____ _____ visiting Beijing.

2. I wear a coat. Its colour is blue.  

I am _____ _____ _____  coat.

3. Jack's grandfather doesn't know how he could use a computer.  

Jack's grandfather doesn't know how _____ _____ a computer.

4. This book is kind of boring.  

This book is _____ _____ boring.

5. She is a young girl. She has short curly hair.  

She is a young girl  _____shofi curly hair.

单品数量过剩对消费者有哪些影响？