The two scholars worked at the task of writing a preface to the new dictionary f

游客2024-08-24  4

问题 The two scholars worked at the task of writing a preface to the new dictionary for three hours ________last night.

选项 A、at length
B、in full
C、on end
D、in time

答案 C

解析 这两位学者昨晚连续花了三个小时为这部新词典作序。固定搭配题。at length意为“最后,终于”;in full意为“全部地”;on end意为“不断地,连续地”,常和表示时间的词连用;in time意为“及时,迟早”。根据题意,three hours后面用on end最贴切,所以C为正确答案。
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