问题
Oh, there is someone knocking at the door. — __________ must be your neighbour, Mrs Black.
A:There
B:She
C:He
D:It
B:She
C:He
D:It
正确答案是：
同类题型
.Do you know ______ to deal with the problem? Could you tell me?
DidyouremembertogiveTomthekeytohisbedroom? —Yes.Igaveittohim ________Isawhim. [ ]
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The children _______ a PE class on the playground when it suddenly began to rain.