The problem is _________ we can finish the work in time.
#34449
A
what
B
whether
C
that
D
if
推荐题目
Many people say they love birds, but some plant trees _________ some make cages.
#34093
A
until
B
though
C
unless
D
while
A man does not know the difficulty of anything _____ he does it personally .
#80502
A
although
B
if
C
because
D
unless
— Have you told Mary the good news that she was admitted into Shandong University?— Yes. I told her ________I saw her this morning.
#30176
A
while
B
the moment
C
until
D
suddenly
I had promised to send him an email_______ I got home but I was so busy that I forgot to do so .
#32842
A
while
B
until
C
the moment
D
ever since
________ parents say and do has a lifelong effect on their children.
#29969
A
That
B
Which
C
What
D
As