If God __________everything in the world, the strange creatures in fossils __________so many years before.
A.had created; shouldn’t exist B.had created; couldn’t have existed
C.should create; wouldn’t exist D.created; wouldn’t have existed
The campaign of garbage classification aims to make the public __________.
A.environment conscious B.environmentally conscious
C.environment consciousness D.environmental-conscious
__________, there will be a day to let the cat out of the bag.
A.However well-kept the secret is B.As the secret is well-kept
C.However the secret is well kept D.Since the secret is well-kept
Once the marine life is poisoned, it will be a very long time __________it restores its original condition.
A.since B.that C.before D.until
__________is a certain doubt among people __________the official advertisement has a misleading effect on customers’ choices of electronic products.
A.It; that B.There; that C.It; whether D.There; whether
We can’t hope to solve all the ecological problems, __________arise directly or indirectly from overuse of the earth’s resources.
A.many of them B.and many of which C.many of those D.many of which
