Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.
#33567
A
while
B
or
C
for
D
so
推荐题目
---Did you remember to give Jenny the money?--- Yes. I saw her, I’m sure.
#33482
A
So long as
B
So far as
C
The moment
D
Any time
— They said they were going to go camping in spite of the rain. — That’s _________ I disagree.
#33685
A
what
B
where
C
that
D
which
I don’t believe we’ve met before, ________ I must say you do look familiar.
#31797
A
therefore
B
although
C
since
D
unless
Some experts have said that ________ children believe they can succeed, they will never become totally confident of themselves.
#30261
A
if
B
since
C
once
D
unless