A lot of people often forget that oral exams to test our municative ability．
A. design
B. are designed
C. are designing
D. are being designed
网友回答
A. design
(答案→)B. are designed
C. are designing
D. are being designed
解析：考查时态及语态。根据语境可知用现在时的被动语态。句意：许多人常常忘记，口语考试是被设计来测试我们交际能力。