单项选择题

Tom must have practiced swimming with his father last Sunday, ______ he

A．didn't
B．hasn't
C．wasn't
D．mustn't
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单项选择题
When you stay with such a big person, remember to talk the ______ way.
A．usual
B．proper
C．common
D．ordinary
单项选择题
How much will you be charged if your family (a couple and three children) go on a Special Sunday ticket trip
A．￡15.00.
B．￡12.50.
C．￡9.00.
D．￡5.00.
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