Question

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

Answer 1

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。