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