问题描述：
where is the shopping list?it isn't in the bag.
Oh,dear,I seem ___ so many things___Christmas is here.
A.to forget/since B.to be forgotten/when C.to be forgetting/that D.to have forgotten/now that.
Oh,dear,I seem ___ so many things___Christmas is here.
A.to forget/since B.to be forgotten/when C.to be forgetting/that D.to have forgotten/now that.
问题解答：
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