单选题 At the same time there______the pressure on staff and this is perhaps one reason for the growth of white collar work unions in the banks.
  • A. have increased
  • B. are increasing
  • C. was increased
  • D. has been increased
【正确答案】 D
【答案解析】这句话的意思是说，与此同时，对员工的压力也已经加大，这也许就是银行中白领工会越来越多的原因之一。此处and前的单句真正主语为the pressure on staff，因此谓语动词需用单数，加之此处强调第一句对后句的影响，故选(D)。