时态填空 -The classroom is so clean.When__you___it(clean)it?-We cleaned it twenty minutes ago.
问题描述:
时态填空 -The classroom is so clean.When__you___it(clean)it?-We cleaned it twenty minutes ago.
答
时态填空 -The classroom is so clean.When__you___it(clean)it?-We cleaned it twenty minutes ago.