The correct word is given as :-
assess, seek

Correct Option: D

As we can say that ,
The correct word is filled in the above given sentence :-
It is time to assess ongoing programmes and seek new horizons.

The correct word is filled in the above given sentence :-
committed, inevitable

Correct Option: D

As we can say that ,
The correct word is filled in the above given sentence :-
He committed a wrong act because it was inevitable for him to do so due to circumstantial forces.

The correct word is given as :-
behaviour, conclusion

Correct Option: D

As we can say that ,
The correct word is filled in the above given sentence :-
Unpredictable behaviour of the child could not lead the consultants to any conclusion.

The correct word is given as :-
interchange, preservation

Correct Option: B

As we can say that ,
The correct word is filled in the above given sentence :-
Our Constitution was based on the belief that the free interchange of ideas, people and cultures is essential to the preservation of a democratic society.

The correct word is given as :-
dark, frightened

Correct Option: C

As we can say that ,
The correct word is filled in the above given sentence :-
The tunnel was so dark and congested, that we became frightened.