Those were the graduate assistants ______ to do the research work in the lab.
A.to whom it was their responsibility | B.whose responsibility there was |
C.whose responsibility was | D.of whom with the responsibility |
推荐套卷
Those were the graduate assistants ______ to do the research work in the lab.
A.to whom it was their responsibility | B.whose responsibility there was |
C.whose responsibility was | D.of whom with the responsibility |