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 busily 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 busily drying myself with a towel ______ I heard the steps.
A.while
B.when
C.since
D.after