【C14】
A．Until
B．If
C．Whether
D．Though
请帮忙给出正确答案和分析，谢谢！
【C17】A．untilB．sinceC．afterD．before
A．BecauseB．WhenC．WhetherD．If
【40】A．thatB．howC．whetherD．when
【C5】A．untilB．onceC．afterD．since
Doctors won t operate on the patient______absolutely necessary.A．whenB．ifC．unlessD．though
【B13】A．untilB．beforeC．whenD．as
冀公网安备 13070302000102号
答题翼app下载