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题目内容
（请给出正确答案）
A.took place
B.have taken place
C.has taken place
D.have been taken place
答案
更多“Great changes （) in Beijing in the past three years.”相关的问题
第2题
A.take place
B.took place
C.have taken place
D.are taking place
第3题
Subsonic flight does not produce a sonic boom, because it ______.
A．does not disturb existing pressures
B．stays behind its disturbance
C．does not produce great enough changes in pressure
D．stays ahead of its disturbance
第4题
The last paragraph suggests that______.
A．a modern computer won't be down
B．computers can take the place of humans
C．there will be great changes in computers
D．sometimes a computer may bring suffering to people
第5题
A.have been taken place, have been set up
B.have taken place, have been set up
C.have been taken place, have been set up
D.were taken place, were set up
第6题
Which of the following is true of Livingston？ ______
A．He thinks he has discovered a new possibility in the link between sun spots and the weather on the Earth.
B．He has great doubts about the theory that the sun's frequent changes have an influence on the Earth's climate.
C．He has been recently informed by other scientists of the possibility that more sun spots will appear.
D．He does not think the causes of the sun spots will be fully revealed by scientists in the near future.
第8题
A.differences
B.similarities
C.likelihood
D.changes
第9题
In the last paragraph，the author mainly intends to
A．list the necessary changes we ought to make
B．advise US to make any necessary changes
C．explain what changes can bring
D． explain the process of making changes
第10题
Code-mixing refers to the fact that a speaker changes from one language to the other in different situations or when talking about different topics. ()
第11题
A.错误
B.正确
