A man does not know the difficulty of anything_________ he does it personally.
#80329
A
although
B
if
C
because
D
unless
推荐题目
I didn’t realize my mistake ________ my teacher had a facetoface talk with me.
#32640
A
until
B
after
C
since
D
when
You can’t complain of being lonely _______ you don’t make any effort to meet people.
#32597
A
until
B
when
C
once
D
though
Telephone users sometimes complain about unreliable service and they consider unfair charges.
#31509
A
which
B
that
C
what
D
how
It is still under discussion ________the old bus station should be replaced with a modern hotel or not.(2011·重庆)
#29980
A
whether
B
when
C
which
D
where
—What should we pay more attention to if we go north in winter, Mum?—Nothing much. Take warm clothes ______ the weather is cold.
#80658
A
as long as
B
now that
C
if
D
in case