______ there are living creatures in the outer space as those on Earth hasn’t been proved so far.
A．When B．How C．If D．Whether
______ earlier online survey showed that ______ majority of Chinese believe Yuan Longping deserves a Nobel Peace Prize for his contribution to fighting against world hunger.
A．An; the B．The; a C．An; / D．The; the
In our team, no person ______ Tom could finish this tough task in such a short time.
A．better than B．rather than C．other than D．more than
---We've spent too much money recently.
---Well，it isn't surprising. Our friends and relatives ______ around all the time.
A．are coming B．had come C．were coming D．have been coming
At the eve of Christmas, she got nothing but $ 2 ____ to buy her husband a simple present.
A．with what B．which C．what D．with which
_____ private cars bring us convenience, they also cause more traffic accidents and pollution.
A．While B．As C．If D．Since
