. People have always been_______about exactly how life on earth began.
A．curiousB．excitedC．a(chǎn)nxiousD．careful
A
“人們一直對(duì)地球上的生命是怎樣起源的很好奇�！盇. curious 好奇 B. excited 興奮     C. anxious 焦急 D. Careful細(xì)心，答案A。
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