I left out a last thing on the questionnaire.

Whicf of the following should be evaluate a mistake?

1) ......(moral conscience/fear/cowardice) is what prevents man from committing suicide. (in Hamlet)
2) The fear of death allows man to bear sufferings and ...... (injustices, pain(or pains?), sorrows, troubles) Which are possible?

In my opinion, I would consider these to be errors:

1. fear

2. pains
injustices

For #2, these should be considered correct: injustice, pain, sorrows, troubles.

I'd also make "sufferings" a singular, not a plural.