It's unfair! You sit there ,listening to
题型:选择题
问题:
It's unfair! You sit there ,listening to me, _____ I stand here, teaching you. [ ]
A. when
B. as
C. while
D. since
It's unfair! You sit there ,listening to me, _____ I stand here, teaching you. [ ]
A. when
B. as
C. while
D. since