I was so______in my book that I didnt hear the doorbell ring.A.settledB.concentratedC.abso

外语类 专四 已帮助 人

I was so______in my book that I didnt hear the doorbell ring.

A.settled

B.concentrated

C.absorbed

D.occupied

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。