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)生請來) in the middle of the night.
5. This book ________________________ (條理不清),Some parts are even contradictory.