——Look! Somebody_______ the sofa.——Well, it wasn't me. I didn't do it.

题型：单选题题类：模拟题难易度：普通

——Look! Somebody_______ the sofa.
——Well, it wasn't me. I didn't do it.

A、is cleaning B、was cleaning C、has cleaned D、cleaned

举一反三

{#blank#}1{#/blank#} you{#blank#}2{#/blank#} {#blank#}3{#/blank#} the Great Wall?

— ______.

—Oh, I ______ my pet dog in the park. I ______ this dog for three days and it's very cute.

—Sorry，we won't do that again.

—It's so touching that I ____ it twice so far.

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