While she _____ TV, someone ______

While she _____ TV, someone _______ at the door.

#55631

watch, knocked

was watching, knocked

watching, knocking

was watching, is knocking

推荐题目

Though it was late, __________ he went on with his work.

#55599

and

but

 He’s not a perfect child. He sometimes talks back ____ his parents talk with him.

#55216

before

when

until

I don’t know _____ or not he will come . _______ he comes , I will call you .

#55872

whether ; If

whether ; Whether

if ; If

if ; Whether

---Why are you busy these days?--         I am writing a book.

#56484

since

for

because

After school he didn't go home. ______, he went to the playground.

#57039

But

While

Instead

Instead of

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