When deeply absorbed in work,_which_ he often was,he would forget all about eating or sleeping.请问which的先行词是哪个,为什么,

When deeply absorbed in work,________he often was,he would forget all about eating and sleeping为什么不能用when When deeply absorbed in work,____he often was,he would forget all about eating orsleeping.A.that B.which C.where D.when 答案给的which When deeply absorbed in study,_ he often was,he would forget all about eating. A.when. B.where. C.which. D.what 单选 When deeply absorded in work,he often wasWhen deeply absorbed in work,____he often was,he would forget all about eating orsleeping.A.that B.which C.where D.when 用what可以吗,为什么. when deeply（）in work,（）he often was.he would forget all about eating and sleeping.Aabsorbed,what .Babsorbed,which .Cbeing absorbed,as .Dabsorbing,which when deeply absorbed in work,——he often was,he would forget all about eating.空格处填的which是作表语吗? 英语关系代词!When deeply absorbed in work,------- he often was,he would forget all about eating and sleeping.空格处填什么关系代词? When deeply absorbed in work,_which_ he often was,he would forget all about eating or sleeping.请问which的先行词是哪个,为什么, when deeply absorbed in work ,__ he often was,he would forget all about eating or sleeping.这里为什么用which?不是修饰物用which呢.还有,英语从句该怎么学好.TAT（这个可以选答.） 定语从句缺表语只能用关系副词 which 些错了，关系副词改成关系代词When deeply absorbed in work,__he often was,he would forget all about eating only weep when deeply hurt only weep when deeply hurt Deeply ___ in our happy childhood memories ,none of us noticed the arrival of Monica.A.absorb B.absorbed C.absorbing D.to be absorbed 1.When deeply absorbed in work,（ ） he often was,he would forget all about eating and sleeping.where 还是 when 2.As many as five courses are provided,g you are free to choose （ ）suits you best.whichever 还是 whatever3.I want to be liked an men only weep when deeply heart翻译 Deeply deeply Deeply