(·浙江省杭州高中高三上第一次月考) 16. I had just stepped out of the bathroom ______ I heard the steps.
A. while B. when C. since D. after
(·浙江省杭州高中高三上第一次月考) 16. I had just stepped out of the bathroom ______ I heard the steps.
A. while B. when C. since D. after
B