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People used to think that there is no grass before the extinction of dinosaurs.A.YB.NC.NG
People used to think that there is no grass before the extinction of dinosaurs.
A.Y
B.N
C.NG
People used to think that there is no grass before the extinction of dinosaurs.
A.Y
B.N
C.NG
People used to think that the surface of the moon was smooth, ______?
A.don't they
B.wasn't it
C.didn't they
D.usedn't they
Researchers think body language .
A.can be understood and used by people in communication
B.is more important than spoken language in communication
C.has been discovered in recent years
D.is the study of communication through body movements
People used to think that poverty and unemployment were due to________.
A.the slow development of the economy
B.the poor and jobless people's own faults
C.the lack of responsibility on the part of the society
D.the large number of people who were not well-educated
People used to think that heavy objects always fell faster than light______.
A.ones
B.the ones
C.these
D.those
A、amount to much
B、amount of much
C、not amount to much
D、not amount of much
When people were young, they used to______.
A.be in charge of many businesses
B.have few things to think about and take on
C.look after their younger sisters and brothers
D.face a lot of difficulties
The knowledge of brain could possibly be used to______.
A.treat people with Parkinson"s
B.get people to become dynamic
C.cure the injuries of war veterans
D.transform. the way humans think
People used to think that ______.
A.car accidents are mainly caused by some drivers who drive so carelessly that they break the traffic regulations
B.car accidents are mainly caused by ordinary drivers when they are careless or absent-minded for a moment
C.insurance companies support those who drive carelessly
D.an accident is something we cannot predict to avoid
A.cause widespread damage in the countryside
B.affected the entire eastern half of the United States
C.had damaged effect on health
D.existed merely in urban and industries areas
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