.The symbolic one-hour switch-off first _____ in Sydney in 2007 has become an annual global event.A.

题目简介

.The symbolic one-hour switch-off first _____ in Sydney in 2007 has become an annual global event.A.

题目详情

.
The symbolic one-hour switch-off first _____ in Sydney in 2007 has become an annual global event.
A.to hold B.being held C.to be held D.held
题型:单选题难度:偏易来源:不详

答案

D

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