A. the words had spoken B. had the words spoken C. the words had been spoken D. had the words been spoken
单项选择题Do you know the singer and dancer who () at the gate
A. is standing B. are standing C. is stand D. standing
单项选择题It's time () about the traffic problem downtown.
A. something was done B. anything will be done C. everything is done D. nothing to be done