问题
选择题
They ______ basketball at six o’clock last Friday night.
A played B have played C were playing D play
答案
答案：C
本题考查时态。根据句中时间状语at six o’clock last Friday night“上周五6点钟”，可知用过去进行时。句意：他们在上周五6点钟正在打篮球。
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