Language analysis course: modality 3

I have to be at work early tomorrow
1. obligation
2. advice
3. ability
4. personal
She ought to have arrived by now. She left hours ago.
1. likelihood
2. obligation
3. suggestion
4. possibility
That might be the case
1. likelihood
2. obligation
3. ability
4. suggestion
That can't be him so soon
1. likelihood
2. obligation
3. ability
4. suggestion
That will be the postman at the door
1. likelihood
2. obligation
3. ability
4. suggestion
They weren't able to help me
1. likelihood
2. obligation
3. ability
4. willingness
She refused to marry him
1. obligation
2. willingness
3. ability
4. likelihood
There some chance that it will break
1. obligation
2. willingness
3. ability
4. likelihood
It needed to be done, I'm afraid
1. advice
2. willingness
3. ability
4. necessity
I daren't try
1. advice
2. willingness
3. ability
4. courage