There is some doubt ____ the sick schoolboy can join in the English evening party on Sunday. 
#33113
A
/
B
whether
C
that
D
which
推荐题目
I fell in love with the West Lake ____ I went to Hangzhou.
#31220
A
for the first time
B
first time
C
the first time
D
for first time
 Roses need special care ______they can live through winter.
#30090
A
because
B
so that
C
even if
D
as