1. Man is a ___ being.
A. raw
B. ration
C. rational
D. ratio
2. The price of commodity should be determined by the ____ of supply and demand.
A. principle
B. rule
C. law
D. regulation
3. How did he ____to the news?
A. function
B. perform
C. operate
D. react
4. We thought they had come to repair the phone, but in ____they were robbers.
A. reality
B. addition
C. future
D. vain
5. You are not very ____if you expect a child to behave like a grown-up.
A .reasonable
B. true
C. reality
D. rational
6.I haven’t heard from her____
A. recently
B. lately
C. presently
D. nowadays
7. Leave your key at ____
A. receive
B. receiver
C. receipt
D. reception
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