The sun_____,they went homeA set down B.setted C.setting D.sets 选项及原因

问题描述:

The sun_____,they went home
A set down B.setted C.setting D.sets
选项及原因

B.setted
主从句时态一致,都用过去时。

选C
考查非谓语动词
过去分词作状语
setting=when the sun had setted
B项缺谓语