Did she_______housework his morning?A.doing B.do C.does D.did

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Didshe_______houseworkhismorning?A.doingB.doC.doesD.didDidshe_______houseworkhismorning?A.doingB.doC

Did she_______housework his morning?A.doing B.do C.does D.did
Did she_______housework his morning?
A.doing B.do C.does D.did

Did she_______housework his morning?A.doing B.do C.does D.did
B

B.do

B.do

B

B.do

B,did助动词后面动词用原型

B do
疑问句中前面的助动词已经用了过去式did, 后面的谓语动词就要用原形。

B