问题
选择题
Lady Gaga has put off her concerts because of the difficulties by the ongoing strikes.
A.causing
B.to cause
C.to be caused
D.caused
答案
答案:D
考查非谓语动词.句意: 由于正在进行的罢工引起的困难.嘎嘎女士推迟了她的音乐会.过去分词作定语表示被动的动作,和被修饰词是动宾关系,结合语境额裤子选D.