Excuse me.I ________ I was blocking your way.
A．didn't realizeB．don't realize
C．haven't realizedD．wasn't realizing
A
句意：對(duì)不起。我(剛才)沒(méi)有意識(shí)到擋了你的路。根據(jù)第二句后半部分的內(nèi)容可知此處敘述的是過(guò)去的情況，表示的是說(shuō)話之前沒(méi)有意識(shí)到擋住了對(duì)方的路，所以用一般過(guò)去時(shí)。
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