Kevin will give less homework to his students if he a teacher.A. becomesB. becomeC. becam

问题补充：

Kevin will give less homework to his students if he a teacher.

A. becomes

B. become

C. became

D. becoming

答案：

(答案→)A. becomes

B. become

C. became

D. becoming

解析：考查动词的时态。if引导的条件状语从句中，如果主句用将来时，从句用一般现在时表将来。句意“如果Kevin成为一名老师，他将给他的学生布置更少的作业。”故选A。