填空题

If we (know) ______ that the books were available, we would have bought them yesterday.

【参考答案】

had known

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单项选择题

How will the man get the ticket （）

A．He’ll pay by credit card.
B．It’ II be collected by himself.
C．He’ll pay by check.
D．It’ll be delivered to him.

单项选择题

What have the two speakers decided to do （）

A．They are not going to see the performance together.
B．The man will see the performance alone.
C．They are going to see the performance together.
D．The woman will see the performance alone.