单项选择题

A．Heavy traffic in the city
B．Pollution in the city center
C．The inefficiency of public transport
D．The high cost of building car parks in the city center.
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单项选择题
A．Where the meeting is being held.B．Where Joe will meet her.C．What the topic of the meeting is.D．What Joe was wearing.
A．Where the meeting is being held.
B．Where Joe will meet her.
C．What the topic of the meeting is.
D．What Joe was wearing.
单项选择题
A．Boats used on rivers were extremely crowded.B．The current was too swirl for boats to cross easily.C．Bridges were too weak to carry the weight of a stagecoach.D．Ferry service was infrequent
A．Boats used on rivers were extremely crowded.
B．The current was too swirl for boats to cross easily.
C．Bridges were too weak to carry the weight of a stagecoach.
D．Ferry service was infrequent
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