摘要： electricity plays such an important part in our life? A.Why is it that B.Why is it C.Why it is that D.Why is that
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________ electricity plays such an important part in our daily life?
[ ]
A．Why was it that
B．Why is it that
C．Why is it
D．Why it is that
________ electricity plays such an important part in our daily life?
[ ]
A．Why was it that
B．Why is it that
C．Why is it
D．Why it is that