写出下列各句的同义句

1. Li Ming and his parents had a good time in Shanghai last summer. 

Li Ming and his parents ________ ________ in Shanghai last summer.

2. Linda is old enough to look after herself. 

Linda is old enough to ________ ________ of herself.

3. You mustn't feed the animals in the zoo.  

________ ________ the animals in the zoo.

4. The black printer is cheaper than the other printers in the shop.

The black printer is ________ ________ of all the printers in the shop.

5. Last week, I got a letter from a friend of mine. 

Last week, I  _______    _______ a friend of mine.