You can’t appreciate happiness _______ you have known sadness too.
#32333
A
because
B
when
C
though
D
unless
推荐题目
The girl began to cry_____she saw the dog.
#30990
A
instant
B
the instant
C
in no instant
D
the instant when
we completely differ from each other in character，we are still great friends .
#31058
A
Even though
B
In case
C
Shortly after
D
Long before
The newcomer went to the library the other day and searched for ________ he could find about Mark Twain.
#31912
A
wherever
B
whatever
C
however
D
whichever
You'd better not leave the medicine ________ kids can get at it.
#30433
A
even if
B
which
C
where
D
so that
I have only one day left ___ traveling to Kunming and then flying back home.
#31012
A
when
B
as
C
before
D
while