Read carefully and then choose the best answer.
People usually sing because they like music or because they feel happy. They express their happiness by singing. When a bird sing, however, its song usually means much more than that the bird is happy. Birds have many reasons for singing. They sing to give information. Their songs are their language.
The most beautiful songs are sung by male (cock) birds. They sing when they want to attract a female (hen) bird. It is their way of saying that they are looking for a wife.
Birds also sing to tell other birds to keep away. To a bird, his tree or even a branch of the tree is his home. He does not want strangers to come near him, so he sings to warn them.
If a bird cannot sing well, he usually has some other means of giving important information. Some birds dance, spread out their tails or make other sing. One bird has a most unusual way of finding a wife. It builds a small garden of shells and flowers.
Most birds usually ______ if they cannot sing well.
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Lời giải:
Báo saiGiải thích: If a bird cannot sing well, he usually has some other means of giving important information. => Nếu một con chim không thể hót hay, nó thường có một số phương tiện khác để cung cấp thông tin quan trọng.
Tạm dịch: Hầu hết các loài chim thường ______ nếu chúng không thể hót hay.
A. cảnh báo những con chim khác tránh xa.
B. cung cấp thông tin của họ theo cách khác.
C. tìm vợ.
D. bay cao trên bầu trời.