Some students like staying up Date into the night, ______ their lessons for the

游客2023-09-27  27

问题 Some students like staying up Date into the night, ______ their lessons for the coming final examination.

选项 A、to prepare
B、prepare
C、preparing
D、were preparing

答案 C

解析 现在分词短语作状语,表示伴随情况。
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