some作主语用单数还是复数?
问题描述：
some作主语用单数还是复数?
Half of the class are still doing all of the homework because some ( )really difficult.
is/are
答
选is,some后用单数还是复数取决于它代指的名词,如果代指可数名词复数,则some作主语用复数,如果不可数名词,就用复数.此处some代指homework,homework为不可数名词,故用单数.“班上还有一半学生在做作业,因为有些题目真的很难”.