问题描述：
Thank you for （ ）me （ ）the housework.A.help；to d
Thank you for （ ）me （ ）the housework.
A.help；to do B.help；doing
C.helping；doing D.helping；to do
Thank you for （ ）me （ ）the housework.
A.help；to do B.help；doing
C.helping；doing D.helping；to do
问题解答：
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