—Whyareyourhandsthatdirty?—Oh,

— Why are your hands that dirty?
— Oh, I______ in the garden since we finished breakfast.

A．worked	B．was working
C．am working	D．have been working

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相关试题

— Where have you been?
— I got stuck in the heavy traffic, or I ________ here earlier.

A．had arrived

B．would have come

C．would come

D．was

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—What do you think of their marriage?
—______, if I were Kate, I would not marry him.

A．Generally speaking

B．I have no idea

C．To be honest

D．To my surprise

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Americans eat _______ vegetables each person today as they did 20 years ago..

A．twice as many

B．many as twice

C．as many twice

D．as twice many

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— Would you allow me ________ here?
— Sorry. We don’t permit _________ in the lab.

A．smoking; smoking

B．to smoke; to smoke

C．smoking; to smoke

D．to smoke; smoking

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— Do you know where David is? I couldn’t find him anywhere.
— Well. He ________ have gone far — his coat is still here.

A．shouldn’t

B．mustn’t

C．can’t

D．wouldn’t

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