问题补充:
.Professor White has received a letter to give a lecture in Peking University.
A. to be invited
B. being invited
C. invited
D. inviting him
答案:
A. to be invited
B. being invited
C. invited
(答案→)D. inviting him
解析:考查非谓语动词。句中inviting him to give a lecture in Peking University作定语,修饰a letter,为主动关系。句意:怀特先生收到了一封去北大作演讲的邀请信。