摘要：21．The Second World War millions of people were killed ended in 1945． A．when B．during that C．in which D．which
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The Second World War, ________ millions of people were killed, ended in 1945.
[ ]
A．when
B．during that
C．at which
D．which
The Second World War, ________ millions of people were killed, ended in 1945.
[ ]
A．when
B．during that
C．at which
D．which