If not tired from work I will spend some time in my study every evening.A. lockingB. lock

问题补充：

If not tired from work, I will spend some time in my study every evening.

A. locking

B. locked

C. having locked

D. being locked

答案：

A. locking

(答案→)B. locked

C. having locked

D. being locked

解析：考查分词做状语。本题的lock与句子主语I构成被动的关系，使用过去分词的形式。句意：如果不是因为上班太累，每天晚上我会把自己锁在书房里度过一段时间。故B正确。本题容易错选A项，但是与句意不符。