Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.
#30282
A
before
B
as
C
unless
D
in case
推荐题目
One split second later your life or someone else's life could be gone ________ you are just glancing at your phone to check a text message.
#30266
A
even though
B
in that
C
only if
D
as if
The process of growing up is complex for every person, ________ there are many influential factors in a person's growth as well as the development of his personality.
#30552
A
but
B
so
C
for
D
therefore
--- Did you enjoy the party last weekend at Peter’s home? --- Oh, sure. It has been years _______ I last enjoyed myself like that.
#33492
A
since
B
before
C
until
D
when
________ he could call the police, the thieves had run away with the suitcase, leaving him shocked and helpless.
#30292
A
Before
B
Until
C
Because
D
Unless
Tom is an honest man; I say it,_________ I have been against him.
#30710
A
even though
B
as long as
C
as if
D
and yet