Tom's mother often requires that he ______ more time in studying English eve
问题描述：
Tom's mother often requires that he ______ more time in studying English eve
Tom's mother often requires that he ______ more time in studying English every day.A.spend B.spends C.spending D.spent
答
A require意为‘要求’,其从句要用虚拟语气,即从句的谓语动词用should+do 形式,should可以省略.故选A.