1727] Up to
now nothing _____ Betty. I want to know the reason _____ he hasn’t written to
me.
[译文] 直到现在没有收到贝特任何来信。我想知道他没给我写信的原因。
A. has heard from; that
B. was heard from; that
C. has been heard from; why
D. heard from; why
[答案及简析]
C。
up to now 一般和现在完成时态连用;reason后面的定语从句一般用why引导。