Experts are trying to work out a plan to deal with the problems caused by global warming _________ it is too late.
#32265
A
if
B
before
C
when
D
until
推荐题目
“You can’t have your football back ____ you promise not to kick it at my dog again,” the woman said firmly.
#79891
A
until
B
when
C
since
D
because
_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
#79673
A
Even if
B
As far as
C
If only
D
So long as
A small car is big enough for a family of three ____ you need more space for baggage.
#79792
A
once
B
because
C
if
D
unless