I have a tight budget for the trip, so I'm not going to fly _ the airlines lower ticket prices.
#31637
A
once
B
if
C
after
D
unless
推荐题目
Adam behaved _________ he had never heard such a thing before.
#30863
A
in case
B
as if
C
while
D
though
The new China was founded in 1949, ______ great changes have taken place.
#33502
A
since when
B
after which
C
in which
D
when
He looks so weak and pale ________ suffering from a serious illness.
#32549
A
as if
B
as long as
C
now that
D
even if
I've become good friends with several of the students in my school I met in the English speech contest last year.
#31150
A
who
B
where
C
when
D
which