Please identify the subject of the main clause in the following sentence.()Then, with World War II,

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Please identify the subject of the main clause in the following sentence.()Then, with World War II, came the development of the weapon that has since become a() general threat to life on earth: the atomic bomb.

A.A. World War II

B.B. the developments of the weapon

C.C. the atomic bomb

D.D. a general threat

参考答案:

答案:B. the developments of the weapon