单项选择题

A．The train is crowded.
B．The train is late.
C．The train is empty.
D．The train is on time.
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单项选择题
The passage appears to be from a(n)______.
A．formal speech
B．information booklet
C．advertisement
D．newspaper article
单项选择题
Two Australian billionaires have been placed on the waiting list for entering space as private passengers.
A．Y
B．N
C．NG
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