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In September, in Britain, you may see a lot of birds【C1】________on roofs and telegraph wires. These birds are swallows. They are
In September, in Britain, you may see a lot of birds【C1】________on roofs and telegraph wires. These birds are swallows. They are
admin
2023-03-13
35
问题
In September, in Britain, you may see a lot of birds【C1】________on roofs and telegraph wires. These birds are swallows. They are【C2】________ together because, very soon, they will be flying【C3】________ to much warmer lands, where they will find【C4】________ small flying insects on which they【C5】________ There are no such insects【C6】________ in Britain during the winter, as it is【C7】________cold for them.
The swallows settle, fly off, swoop, and【C8】________again. This they do many times, for they are making short【C9】________ flights in order to be fit for the long journey【C10】________ them.
【C11】________of these migrating birds leave Britain in the autumn. They fly【C12】________for hundreds of miles【C13】________they reach the warm lands of Africa. But not all the birds get there, for many of them perish in the stormy weather they meet with【C14】________ .
In the spring of the following year they【C15】________the long and tiring journey back to Britain. They return to the identical barn or tree in the【C16】________ district which they had left the【C17】________autumn. How do these birds find their【C18】________there and back over such vast distances? Nobody knows exactly【C19】________ , but it has something to do【C20】________ winds and air currents.
【C17】
选项
A、before
B、previous
C、ago
D、former
答案
B
解析
本题考查形容词辨析。previous意为“(时间或顺序上)先前的”。句意为:他们会回到他们前一年秋天离开的那个地区的同一间谷仓或同一棵树。
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