单项选择题

A．The laboratory was closed.
B．The generator was turned off.
C．The power generator might explode.
D．Electricity was going to run out.
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单项选择题
A．In a travel agency.B．On a campus.C．In a bookshop.D．In a teachers’shop.
A．In a travel agency.
B．On a campus.
C．In a bookshop.
D．In a teachers’shop.
单项选择题
The largest city in Australia is _____.
A．Alaska
B．Sydney
C．Canberra
D．Perth
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