Test 21

　　1. Though you stay in the sea for weeks, you will not________________(失去聯(lián)系)the outside world.

　　2. I have had great deal of trouble_________________________(跟得上班上的其他同學(xué)).

　　3. We should recognize that every company and every person is______________________(顧客和供應(yīng)者漫長鏈條的一部分).

　　4. My brother was very ill, so _______________________ (我只得把醫(yī)生請(qǐng)來) in the middle of the night.

　　5. This book ________________________ (條理不清),Some parts are even contradictory.

　　【答案】

　　1. lose contact with

　　2. keeping up with the rest of the class.

　　3. part of a long chain of customers and suppliers

　　4. I had to call the doctor

　　5. does not have an integrated structure

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