His ability has never been in doubt----the question is ___________ or not he is prepared to work hard.
#31580
A
that
B
if
C
where
D
whether
推荐题目
we should exploit the Antarctic’s natural resources is open to discussion.
#32820
A
What
B
Whether
C
If
D
That
Mary must keep her mind on her medical studies now, so it would be years ______ she could think about marriage.
#32683
A
before
B
when
C
since
D
until
They wanted to charge $5,000 for the car, ________we managed to bring the price down.
#30480
A
but
B
so
C
when
D
since
---- Oh, it’s raining hard outside. Do you think the milkman will arrive?---- Of course. He will come on time ________ it rains.
#30996
A
in case
B
as long as
C
ever since
D
even though
－Do you have a minute? I’ve got something to tell you.－Ok, ______ you make it short.
#80525
A
now that
B
if only
C
so long as
D
every time