问题描述：
( )when did she wait on the freezing cold morning.(要原因) / Until For When
My father often writes me ( ) my study.
in connetion in connection with connect on connection to
They regarded her ( ) their big sister.
for as to at
My father often writes me ( ) my study.
in connetion in connection with connect on connection to
They regarded her ( ) their big sister.
for as to at
问题解答：
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