The handle of the nanobrush is ______.
A. thicker than a human hair
B. thirty billionths of a meter across
C. a few millionths long
D. relatively smaller than the brush
In the long run, English learning, difficult as it is, is ______ to a learner iii his or her career devel- opment.
A. profitable
B. advantageous
C. prominent
D. rewarding
How about the international calls service in the hotel
A. It is not expensive.
B. There is peak rate service.
C. The guests can enjoy discount rate.
D. There is only standard rate.
After the Civil War, there was a great demand in Britain for ______.
A. southern money
B. signatures of George Washington and Ben Franklin
C. southern manuscripts and letters
D. Civil War plans
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