When deeply absorbed in work,____he often was,he would forget all about eating or

问题描述:

When deeply absorbed in work,____he often was,he would forget all about eating or
sleeping.A.that B.which C.where D.when 答案给的which

选择B
是因为这里也是一个定语从句,不过这里的定语从句修饰的是前面整个句子
which表示的就是前面整个句子的意思
当沉下心工作后,他经常这样,他会忘了吃饭和睡觉