单项选择题

How much will the airline lose yearly

A．$ 350 million.
B．$ 900 million.
C．$ 20-$ 30 million.
D．$ 240-$ 360 million.
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单项选择题
Why is a person's social contacts one important factor in loneliness
A．We need our friends to share similar interests and activities.
B．We need our teachers to guide us.
C．We need co-workers to help us.
D．A lonely person’s popularity may be increased with more social contacts.
单项选择题
Which type of loneliness is NOT mentioned in the passage
A．Severe loneliness.
B．Situational loneliness.
C．Chronic loneliness.
D．Temporary loneliness.
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