LadyGagahasputoffherconcertsbecauseofthedifficulties 国语站 题库 9.23K 大中小设置文字大小 问题详情: Lady Gaga has put off her concerts because of the difficulties ______ by the ongoing strikes. A. causing B. to be caused C. caused D. to cause【回答】C知识点:非谓语动词题型:选择题 TAG标签:#