Nero,hic Verbis territus : cld you guys please check this...

[awlright]

I think it best translates as "Nero, having been frightened by these words"

Cheers!

[awlright]

Also: iuvenis tamen, consumpto veneno, non mortuus est.

"However the young man, with the poison having been consumed, he was not dead."

[awlright]

Just another one (SORRY!) ubi poculum vini nimis calidi, in quod nullum venenum positum erat, ei datum est,
When a cup of wine was too hot, in which no wine having been placed, was given to him

[benissimus]

the first one is correct, if the text says his verbis territus.

regarding the second one, non mortuus est means "did not die" or "is not dead" - it cannot mean "was not dead" (mortuus erat/fuit)

the third one... it's just "a cup of wine too hot", no "is". then you translated venenum as vinum. positum erat is pluperfect, so "had been ___ed" (not "having been ___ed").