manytimes,butshestilldidntknow

__ many times, but she still didn't know how to do it.

A．She was taught

B．Having taught

C．Having been taught

D．She has taught

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. Could you give me a hand __________from the car, please?

A．to carry the shopping

B．for carrying the shopping

C．and carrying the shopping

D．carrying the shopping

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--I'm told that John had another car accident this morning.
--I believe not. He _________so careless.

A．shouldn't have been	B．wouldn't have been
C．couldn't have been	D．mustn't have been

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The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.

A．to be invented	B．having been invented
C．invented	D．to have been invented

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--I didn't know this was a one-way street, officer.

A．That's all right.	B．I don't believe you.
C．How dare you say that?	D．Sorry, but that's no excuse.

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--Which play shall we go and see?

A．I'm afraid we can't

B．I don't think it's interesting

C．Yes, I quite agree with you

D．I'll leave it to you

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