The number of smokers in China ________increased in recent years, and a number of them ________ the youth.
A．has; are B．have; are
C．is; is D．are; are
The number of smokers in China ________increased in recent years, and a number of them ________ the youth.
A．has; are B．have; are
C．is; is D．are; are
A 句意：最近几年，中国吸烟人的数量增加了，他们中的许多人都是年轻人。the number of“……的数量”，谓语动词用单数；a number of＝many，“许多的”意思，谓语动词用复数，选A。