I do every single bit of housework ---my husband just does dishes now and then

问题描述:

I do every single bit of housework ---my husband just does dishes now and then
A.since B.while C.when D.as为什么?

while,前后两种情况形成对比,轻微转折,用while,这是一种并列(妻子很勤快,总做家务,而丈夫只是偶尔刷碗)