A smile is typically an expression of () in American culture.
A. embarrassment
B. politeness
C. sadness
D. pleasure
查看答案
Which of the following statements is correct according to che passage()
A. The total prevention of tsunamis is possible.
B. Rich countries are less affected by tsunamis than poor countries.
C. Approaching tsunamis can possibly be picked up by sensors.
D. An early warning system is effective when a tsunami is close by.
37()
A. sitting
B. sat
C. to sit
D. sit
As long as it is fine tomorrow, we will go swimming.
The new library is three times as large as the old one.
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