---Look! Such heavy traffic!--- I doubt _________ or not I can get to school on time.
#56179
A
if
B
when
C
whether
D
why
推荐题目
We’ll visit Expo 2010 Shanghai this Sunday_______ it rains or it’s very hot．
#58511
A
since
B
if
C
unless
D
until
----Someone wants you on the phone,----____________nobody knows I am here.
#55188
A
Although
B
And
C
But
D
So
Jim came into the room ______ Millie sat down on the chair last night.
#55638
A
as
B
while
C
when
D
since
Run for more than half an hour every day, ________ you can lose your weight easily.
#55293
A
or
B
and
C
but
D
unless