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完形填空
A crow is a common bird.It is about twenty inches long and it,is black all over.Crows are 1 birds because they live on old bad food.Cows eat a lot of waste food .In this way they are moer __2_ for us than any other bird.
They clean up the dirty things in our streets.Crows are always 3,They look for food all day long ,and in the evening you can see them in 4 numbers flying back to their nests in the trees .They sleep there at night.
Crows are much 5 than any other bird .Very often a large number of crows will get together on one house and talk.Sometimes they talk 6 ,and sometimes they do it by turns like human beings .It is 7 to tell the differences between crows sounds whether they are pleased or
8 .Perhaps crows talk a lot because they are friendly birds.A 9 of crows will live together all their lives ,and if one of them 10 the other one becomes very sad and queit for the rest of its life and later it dies ,too.
1.A.peaceful
B.dirty
C.unfriendly 提问时间:2021-01-01

答案
D/A/C/A/B/A/A/D/A/D
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