题目内容
【题目】I have warned him of the danger ___ but he always turns deaf to my warning every time.
A.only once
B.for a time
C.over and over again
D.once again
【答案】C
【解析】over and over again是“反复地”,符合语境。而only once是“仅仅一次”;for a time是“短时间内,暂且”;once again是“再次”,均不符合语境;句意为:我再三警告他这一危险,但是他每一次都是置之不理。
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