1. Obligation
2. Certainty
3. Ability
4. Offer
5. Inability
6. Impossibility
7. Obligation
8. Certainty
9. Ability
10. Offer
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explanations:
Obligation = the state of being oblige
Certainty = To be confident and sure about sth
Ability = is the fact that sb is able to do sth
Offer = to say that you are willing to give something to somebody
Impossibility = unlikely to happen
Inability = Unable to do sth
By RoseanneParkBLINK
Best wishes ^^