Tom’s mother often requires that hemore time in studying English every dayA. spendB. spen

问题补充：

Tom’s mother often requires that hemore time in studying English every day．

A. spend

B. spends

C. spending

D. spent

答案：

(答案→)A. spend

B. spends

C. spending

D. spent

解析：A，一些东西如require、request、suggest等后面的从句，从句中谓语动词应该用原型。