ThenumberofsmokersinChina

问题详情：

 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

【回答】

A　句意：最近几年，*吸*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。

知识点：主谓一致

题型：选择题