He is the only one of those clerks _____
题型:选择题
问题:
He is the only one of those clerks ________ to the important conference.
A.who was inviting
B.who were invited
C.who has been invited
D.who have been invited.
He is the only one of those clerks ________ to the important conference.
A.who was inviting
B.who were invited
C.who has been invited
D.who have been invited.