A．To help people quit smoking more effectively.B．To make Freedom from Smoking campaign
A. To help people quit smoking more effectively.
B. To make Freedom from Smoking campaign more popular.
C. To introduce some effective ways to quit smoking.
D. To help people fight all kinds of lung diseases.
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A．For several years.B．For seven years.C．For a year or two.D．For many years.
A. For several years.
B. For seven years.
C. For a year or two.
D. For many years.
A．changeB．changingC．to changeD．being changed
A. change
B. changing
C. to change
D. being changed
It is common that people wear casual clothes on weekends in China.
A. Y
B. N
C. NG
A．Her friend has one.B．A salesman recommended it.C．She saw an advertisement.D．She boug
A. Her friend has one.
B. A salesman recommended it.
C. She saw an advertisement.
D. She bought one before.
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