问题描述：
8.8 I know Jack spends at least as much time reading as he __.
I know Jack spends at least as much time reading as
he __.
A.does writing B.is writing
C.writes D.does to write
请说明理由,
I know Jack spends at least as much time reading as
he __.
A.does writing B.is writing
C.writes D.does to write
请说明理由,
问题解答：
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