问题
选择题
When and where to build the new factory ___ ________ yet.
A．is not decided
B．are not decided
C．has not decided
D．have not decided
答案
答案：A
考查交际用语。When and where作主语时，谓语动词用单数。根据上下文可知是表示被动。故A正确。
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