单项选择题

A．Because they can fly very high.
B．Because they can carry larger freight over within a shorter time.
C．Because they are the newest form of transport.
D．Because they can go somewhere that cannot be reached by other transports.
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单项选择题
A．The traffic is always congested.B．The office bus is often caught in the jam.C．The office bus isn’t convenient for the man.D．The man wants to impress his boss.
A．The traffic is always congested.
B．The office bus is often caught in the jam.
C．The office bus isn’t convenient for the man.
D．The man wants to impress his boss.
单项选择题
A．She didn’t think highly of the performance.B．She felt rewarded for their hard work.C．She was paid less than expected.D．The orchestra spent too much time practicing.
A．She didn’t think highly of the performance.
B．She felt rewarded for their hard work.
C．She was paid less than expected.
D．The orchestra spent too much time practicing.
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