（1）Where did Tom work？
A.In a school.
B.In a post office.
C.In a factory.
（2）How did Tom send the letters？
A.By bus.
B.On foot.
C.By bike.
（3）What did Tom see when he got to the house？
A.A big door.
B.A big dog.
C.A little dog.
（4）Did the dog run after Tom？
A.No，it didn't.
B.Yes，it did.
C.I don't know.
（5）What did the dog come to Tom to do？
A.To carry the letter.
B.To read the letter.
C.To throw the letter.