问题
选择题
I hear a number of workers in the factory _____ out of work and the number of them ______ quite large .
A． are , is
B．is , are
C．is , is
D．are, are
答案
答案：A
这题考查主谓一致的用法：主语是a number of+可数名词复数，“许多”，时，谓语用复数，主语是the number of+可数名词复数，“…的数量”，时，谓语用单数，所以选A。