题目内容
【题目】Yu Gong kept moving the mountains, ______ he was very old.
A. so B. although C. but
【答案】B
【解析】试题分析：句意：愚公不停地移山，虽然他很老了。根据句意，本题用although引导的让步状语从句。故选B。
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题目内容
【题目】Yu Gong kept moving the mountains, ______ he was very old.
A. so B. although C. but
【答案】B
【解析】试题分析：句意：愚公不停地移山，虽然他很老了。根据句意，本题用although引导的让步状语从句。故选B。