It is surprising that Jack, who is only 39 years old, _______ in the field of en

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It is surprising that Jack, who is only 39 years old, _______ in the field of engineering for 20 years when he entered the company last month.

A．worked

B．had worked

C．has worked

D．working

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解析

略

举一反三

. —I’d rather you _______ my party in Shangri-la Hotel.
—Sorry, it was my wife who stopped me, otherwise …

A．had attended

B．attended

C．would attended

D．could attend

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The road in front of our school is _____ and is closed to all the cars.

A．repairing

B．being repaired

C．repaired

D． repair

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All the students were looking forward to_______here.
A, come B. being coming C. came D.coming

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They are _________ their grandmother’s 70th birthday .
A. greeting B .celebrating C .joining D congratulating

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– You ought to see a doctor about that cough.
-- I guess I should. I _____ it off for days.

A．put

B．was putting

C．have been putting

D．am putting

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