题目内容
11.请听第10段材料,回答第17至20题.17.What is the percentage of families having pets in North America?
A.60%
B.30%
C.16%
18.Which are the most popular pets?
A.Cats an fish.
B.Dogs and birds.
C.Cats and dogs.
19.How may people feel without pets according to the speaker?
A.Free.
B.Upset.
C.Lonely.
20.What do we know about people in North America?
A.They don't lettheir pets sleep in their beds.
B.They treat their pets as family members.
C.They often give their pets a checkup.
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