It will be five years ____ we meet again. 
#80612
A
since
B
after
C
before
D
when
推荐题目
____ lack of energy, he still kept on helping the injured people.
#34247
A
Thanks to
B
Due to
C
Despite
D
Even if
You may keep the book for one more week_____ no one else needs it.
#31966
A
provided that
B
so that
C
in order that
D
in case
We won’t give up ________ we should fail ten times.
#31020
A
even if
B
unless   
C
whether
D
Until