—Johnhasputforwardmostchalleng

—John has put forward ________ most challenging question for us to answer.
—Yes，it really is.I have never heard ________ harder one.

A．the；/

B．/；the

C．the；the

D．a；a

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相关试题

Tom took a taxi to the airport, only __________ his plane high up in the sky.

A．finding	B．to find
C．being found	D．to have found

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He got up late and hurried to his office，__________ the breakfast untouched.

A．left	B．to leave
C．leaving	D．having left

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Nowhere else __________ be able to find a larger display of sea animals, including one of the largest collections of sharks in the world.

A．you will	B．can you
C．could you	D．will you

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To reach your goal（目标），you should make a good plan and __________ make good use of your time.

A．in all	B．above all
C．after all	D．at all

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I choose to shop __________ because it saves time and effort.

A．on the air	B．on the Internet
C．on TV	D．in magazines

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