21. Mr. Wang is a man of _________ and we have got much _________ from him about how to make a living.
A. experience; experiences B. an experience; an experience
C. experiences; experience D. experiences; experiences
22. The League Secretary and monitor ______giving a speech while the rest of the class ________ listening attentively.
A. were, were B. was, was C. were, was D. was, were
