_____ is knocking at the door?填who还是which,为什么?回答是什么?
---someone is knocking at the door.Who _____ it be?
who is knocking at the door?
1.----Who is knocking at the door
Listen!Who is knocking at the door?
6.There is someone knocking at the door,who _____ it be?
Who is knocking at the door?---_____ may be Mary.A.She B.He
Someone is knocking at the door.Who can it be?的回答.A.Nothing
who is knocking at the door?it is ()me还是i呢?求理由
单句改错 who is the men knocking at the door
Someone is knocking at the door,but who can____ be?
"Who's knocking at the door?" "______ is Kate."
someone is knocking at the door.who [ ]it be?