C. Liability
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Brainliest would be nice because I’m stuck on Ambitious, but you don’t have to of course
I strongly agree with I strongly agree with MCCCHUK
1d) was designed (long time ago so past tense)
2d) Has been repaired (It is still going on the present, this year)
3c) Had discovered (He discovered America long time ago)
4a) To have worked (worked long ago when he was young)
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The answer is A. Spectatress is from a Latin word spectartix meaning a female of spectator. Spectator means "one who looks on or watches"