问题描述：
请帮我做下这两题,
The roads were deep ____ mud.
A.by B,for C.with D,as
______ back,they saw the timid little dog on the other side of the stream.
A:Looking
B:Look
C:Looked
D:To look
The roads were deep ____ mud.
A.by B,for C.with D,as
______ back,they saw the timid little dog on the other side of the stream.
A:Looking
B:Look
C:Looked
D:To look
问题解答：
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