用who或which完成下列句子

题目

用who或which完成下列句子
1.（ ）hat did you buy
2.( ) broke this plate
3.( ) bus did you catch
4.( ) is knocking at the door
5.( ) of the two books do you want?

答案

1.Which
2.Who
3.Which
4.Who
5.Which
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