—Ihavebeenwaitingforyousolong.

—I have been waiting for you so long.
—Sorry, I have been in the library, _______ my friend look for some books.

A．helped

B．helping

C．to help

D．help

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相关试题

第二部分：语言知识及应用(共三节,满分45分)
第一节：单项选择（共10小题；每小题1分，满分10分）
21．— I must have a balanced diet. I carry too much fat.
— ________.

A．Congratulations

B．Good idea

C．Good luck

D．Don’t mention it

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35．—Why didn't you ask him for help?
—______, but he was working on his computer．

A．I had wanted	B．I had wanted to
C．It's hard to say	D．Don't mention it

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34．The artist was welcomed into a room that seemed to serve as workshop, sitting-room and kitchen ______．

A．combined	B．to combine
C．combining	D．being combined

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33．—There will be a talk show this time tomorrow．Would you go with me?
—I'm sorry, but I ______ an important meeting．

A．have attended	B．will be attending
C．am about to attend	D．would attend

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32．She shouldn't be working so hard —She is 70, ___ .

A．in any case	B．above all
C．in a way	D．after all

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