3 .

Riddle 1 I carry a big bag every day. There are letters and parcels in the bag. I take them to people. Who am I?	Riddle 2 I wear a uniform. I catch thieves. I make sure the neighbourhood is safe. Who am I?
Riddle 3 I work on a bus. I drive it around every day. I take people to different places. Who am I?	Riddle 4 I work in a shop. Many children come to the shop. They buy sweets and chocolate. Who am I?

阅读以上四条谜语，根据其内容回答其后各个小题。
1. The underlined pronoun “them” in Riddle 1 refers to ________ .

A．big bags

B．letters and parcels

C．people

D．riddles

2. What is the answer of Riddle 2?

A．A teacher.

B．An engineer.

C．A waiter.

D．A policeman.

3. Where does the person in Riddle 3 work?

A．On a bus.

B．In a zoo.

C．At an airport.

D．On a farm.

4. The shop in Riddle 4 is probably a ________ .

A．book store

B．fruit store

C．fish market

D．candy store

5. The riddles are about ________ .

A．children

B．parents

C．jobs

D．places