our part as a global citizen.we need to know what is happening in the world． A．T
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our part as a global citizen，we need to know what is happening in the world．
A．To do B．Doing C．Having done D．Done
试题答案
A
our part as a global citizen，we need to know what is happening in the world．
A．To do B．Doing C．Having done D．Done
A