Thetimehascome_____wemakeextensiveuseofnuclearenergy.
A、WhenA
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The doctor ____ is leaving for Africa next month.
Thetimehascome_____wemakeextensiveuseofnuclearenergy.
Human beings are superior to animals _____ they can use language as a tool tocommunicate.
Ours is beautiful school with a long history,____ we are proud.
Rock:______.
Sharon:Verywell,andtheexperimentisnearlyfinished.