—It’sdangeroustoswimhere.Looka

—It’s dangerous to swim here. Look at the sign!
—Oh, I _______ it.

A．didn’t notice	B．don’t notice
C．hadn’t notice	D．haven’t notice

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B: ________

A．Good idea.	B．That’s all right.
C．I don’t think so.	D．You are welcome.

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A．What	B．How
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B: In two months, I suppose.

A．How much	B．How far
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A．both…and	B．not only …but also
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