题目内容

Any exporter who wants to sell his products in a foreign country or countries must first ________ a lot of market research.

A. instruct
B. destruct
C. conduct
D. induct

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There are some tickets ________ for the concert given by a group of popular singers.The concert fans should be quick.

A. leave
B. left
C. leaving
D. leaved

Two days are not enough for me to get ready for the conference.I need ________day.

A. other
B. the other
C. the third
D. a third

We are now writing to you to ________ long－term trade relations.

A. publish
B. establish
C. protect
D. lavish

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