单项选择（每题1分）In his letter was his promise _____ he would spend the Christmas Eve with me.
#70344
A
that
B
what
C
which
D
whether
推荐题目
A decision has been made ________ the new school building be built next month.
#74060
A
why
B
how
C
whether
D
that
Some old Chinese customs, many of you are too young to know, have already died out．
#69475
A
what
B
that
C
how
D
as