14.Government collects its revenue in the form of taxes,which is（）  used for the benefit of taxpayers.

15.Among the companies（） ,33 percent said they did not always investigate before making overseas investments.

16.Sometimes words can be  （）in different ways, so try to be as ckear as you can in your writing to avoid any misinterpretation.

17.Apple sold 33 million iOS devices in the third quarter, including iPod Touch, iPhone and ipad, which （） about 367, 000 devices per day.

18. It's actually smart to take a break from work and stress （）.Don't feel guilty for having a few days off to get your life back in balance.

19.Several of the passengers were perfect strangers until one of them （）conversation and then made a joke about the upcoming journey.

20.Being out of work for months, he had no way out but to （）employment agency for support.