单项选择题

A．He saw the big tower he visited on TV.
B．He has visited the TV tower twice.
C．He has visited the TV tower once.
D．He will visit the TV tower in June.
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单项选择题
The Oscar voting process begins in December of each year.
A．Y
B．N
C．NG
单项选择题
A．The hardcover edition is a little more expensive, though on sale.B．Both editions are on sale.C．The dictionary once had two editions with the same price.D．Both editions are the same price now.
A．The hardcover edition is a little more expensive, though on sale.
B．Both editions are on sale.
C．The dictionary once had two editions with the same price.
D．Both editions are the same price now.
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