---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
Stephen Hawking can’t walk or even speak,_____he has become very successful.
#58267
A
but
B
and
C
or
D
then
_____ they are very tired, they feel happy because they’ve finally finished their project.
#58350
A
So
B
Although
C
If
D
But
-- Is this article difficult to understand? -- Yes, ________ it isn’t long and there aren’t any new words in it.
#58431
A
though
B
so
C
because
D
since