I think everyone should donate blood _____ he is healthy because that’s a citizen’s responsibility.
#31890
A
as if
B
as long as
C
now that
D
in order that
推荐题目
Is it the pigeon to______ he attached the message ______ carried the news there?
#32745
A
whose leg; which
B
which leg; that
C
its leg; which
D
whose leg; that
She found her calculator _______ she lost it. 
#34705
A
where
B
while
C
in which
D
that