When did you do it? I ( ) it a moment ago.A.have done B.am doingC.done D.did

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Whendidyoudoit?I()itamomentago.A.havedoneB.amdoingC.doneD.didWhendidyoudoit?I()itamomentago.A.havedo

When did you do it? I ( ) it a moment ago.A.have done B.am doingC.done D.did
When did you do it? I ( ) it a moment ago.
A.have done B.am doing
C.done D.did

When did you do it? I ( ) it a moment ago.A.have done B.am doingC.done D.did
D
a moment ago 用过去时

D

D.
因为问题是Did you.

D 过去式常与ago一起用

D 后面接过去时