单项选择题

" We're late and the play has started." "I wonder how long ago ______."

A．did it begin
B．it began
C．was it beginning
D．it has begun
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单项选择题
Which of the following is not true about the silicon chip
A．It has appeared since 1960.
B．It is an electronic brain and can store a lot of information.
C．It is a chip of silicon crystal and is very small.
D．It becomes cleverer and more expensive every year.
单项选择题
In the following description about the critics of the new way of life, what is not true
A．They fear that the new way of life will lead to the disappearance of the pleasure of the old French style.
B．The strongest critics are from university students.
C．The strongest critics occasionally express their attitude against the trend with violence.
D．They are committed to keeping France in the forefront of the modern economic world.
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