So fast______that it is difficult for us to imagine its speed.
A. light travels
B. travels light
C. does light travels
D. does light travel
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The Americans and the British not only speak the same language but also ______ many social
A. join
B. share
C. create
D. maintain
In construction, the Romans made extensive use of______.
A. iron ore
B. geometry and trigonometry
C. Greek mathematical thought
D. both B and C
It can be inferred from the passage that______.
A. light waves could be used in a device similar to radar
B. radar was a practical application of a well-known principle
C. radar gready increased the effectiveness of the Royal Air Force
D. sound waves are reflected from a hillside under all conditions
The CalPERS lawsuit indicates that
A. the NYSE did ignore its regulatory duties
B. John Reed should resign like his predecessor
C. the investors were dissatisfied with the NYSE
D. the exchange should have its board reelected
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