1.demonstrate;illustrate
◇demonstrate 证明,论证,以科学严谨的态度,通过推理、辩论或提供证据来证明事物的正谬。illustrate 指用实物、图片等进行说明,illustrate后常用介词by,with。
A.The lecturer ____ his point with a diagram ont heblackboard.
B.To ____ his arguments,he showed us a lot of facts.
C.These figures clearly ___ the size of the economic problem facing the country.
Answers:A. illustrated B. demonstrate C. demonstrate