单项选择题

What was the most wonderful piece of machinery on show

A．The steam boat.
B．The steam engine.
C．The steam hammer.
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单项选择题
A．They should start leaving the exhibition hall now.B．No more visitors will come.C．The exhibition is still open.
A．They should start leaving the exhibition hall now.
B．No more visitors will come.
C．The exhibition is still open.
单项选择题
She looked round the bus before she put her hand into the old lady's bag, because ______.
A．she was afraid that the others would took her as a thief
B．she wanted to steal the money
C．she wanted to make sure whether there was a policeman in the bus
D．she didn't want to get people into trouble
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