By next month it ______ necessary to triple the production output to keep up wit

游客2025-06-11 44

问题 By next month it ______ necessary to triple the production output to keep up with market demands.

选项 A、will be
B、being
C、had been
D、has been

答案 A

解析语法题。由句子中的时间状语“By next month”可知，应用将来时态，故选A。

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