问题

He could not __________ a right answer, so he felt very sad.
A:in the end
B:at the end
C:by the end
D:to the end;
B:at the end
C:by the end
D:to the end;
正确答案是:
同类题型
We have been told that under no circumstances_______ the office telephone for personal affairs.
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The underlined word(划线单词)in the phrase(短语)”the animal” is pronounced ______.