--- Did you talk back to your mother when you were a child? --- Yes. But now I realize I was wrong. I really regret ______ that silly thing to my mum.

题型：单选题题类：常考题难易度：普通

陕西西安市七十中2017届九年级上英语第三次月考试卷

— Did you talk back to your mother when you were a child?

— Yes. But now I realize I was wrong. I really regret ______ that silly thing to my mum.

A、doing B、to do C、do D、did

举一反三

Spring water will {#blank#}1{#/blank#} {#blank#}2{#/blank#} if we don't do anything to protect the environment in Jinan.

It {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} the environment.

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