47. ____ in thought, he didn’t notice me
题型:选择题
问题:
47. ____ in thought, he didn’t notice me when I came into his room.
A.Burying
B.Buried
C.Put himself
D.To be set
47. ____ in thought, he didn’t notice me when I came into his room.
A.Burying
B.Buried
C.Put himself
D.To be set