Tom shut everybody out of the study he could prepare for the coming exam. A. which B. whe

问题补充：

Tom shut everybody out of the study he could prepare for the coming exam.

A. which

B. when

C. so that

D. as if

答案：

A. which

B. when

(答案→)C. so that

D. as if

解析：由句意：为了准备即将来临的考试，汤姆把所有人都关在了书房之外。可知答案C。