单项选择题

You should be able to ______ right from wrong.

A．perceive
B．distinguish
C．sight
D．observe
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单项选择题
The best title which fits the passage best is ______.
A．Barcelona--A Famous City
B．Strange History of Unusual Church
C．A Poor Architect’s Study
D．Gandi’s Life in His Childhood
单项选择题
No one can be sure if the car on display fits him or her until he or she ______ them.
A．tries
B．will try
C．are trying
D．have tried
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