I had just stepped out of the bathroom a
题型:选择题
问题:
I had just stepped out of the bathroom and was busy drying myself with a towel ________ I heard
the steps.[ ]
A. while
B. when
C. since
D. after
I had just stepped out of the bathroom and was busy drying myself with a towel ________ I heard
the steps.[ ]
A. while
B. when
C. since
D. after