Had Tom studied harder, he the exam.
A. must have got through
B. would have got through
C. would get through
D. could get through
网友回答
A. must have got through
(答案→)B. would have got through
C. would get through
D. could get through
解析：考查虚拟语气。本题考查与过去事实相反的虚拟语气，故主句用would + have done。注意从句Had Tom studied harder, = If Tom had studied harder。句意：如果汤姆学习更努力点的话，他可以通过考试的。故B正确。