. Since last year, the global economic s

问题选择题

. Since last year, the global economic slowdown ________ in many countries. It is expected that the world economy will not recover until the end of 2010.

A．is spreading

B．spread

C．had spread

D．has been spreading

答案

答案：D

考查时态。句意：自从去年以来，全球经济减速正在许多国家蔓延。预期直到2010年底世界经济才能恢复。结合语境而可知上文描述的是过去正在进行的动作对现在的影响，故用过去完成进行时态，选D。