题目内容
介词的基本用法与习惯搭配
He came back late, ________ which time all the guests had already left
A) after B) by C) at D) during
B
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介词的基本用法与习惯搭配
He came back late, ________ which time all the guests had already left
| A．after | B．by | C．at | D．during |