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【youshouldhavethankedherbeforeyouleft.Imeant_______,butwhenIwasleavingIcouldn'tfindheranywhere]atodobtocdoingddoingit为什么不选A?】
题目内容：
you should have thanked her before you left.
I meant _______,but when I was leaving I couldn't find her anywhere]
a to do
b to
cdoing
d doing it
为什么不选A?优质解答
如果选A,要在to do 后加it,do 是及物动词.
I meant _______,but when I was leaving I couldn't find her anywhere]
a to do
b to
cdoing
d doing it
为什么不选A?
优质解答
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