问题
选择题
His report was so exciting that it was interrupted by applause（掌声）.
A．constantly
B．constant
C．seldom
D．never
答案
答案：A
词义辨析。 A.副词， 不断地；时常的 B.形容词，不变的 C.副词，很少 D.从未；决不。句意：这个报告时如此振奋人心，它不断被掌声打断。副词修饰interrupted，故选A。