is known to us all that the old scientist,for life is hard in the past,still works hard in his eighties.
A.It;whom | B.As;whom | C.As;whose | D.What:whom |
推荐套卷
is known to us all that the old scientist,for life is hard in the past,still works hard in his eighties.
A.It;whom | B.As;whom | C.As;whose | D.What:whom |