Directions: From the alternatives given, choose the one which will be a suitable substitute for the underlined expression in the following.

As the speaker wandered in his talk and did not keep to the subject, the audience grew impatient.

Deviate is to turn aside to only a slight degree, Ramble is to talk aimlessly without connection of ideas, Swerve is to turn aside sharply or suddenly and equivocate is to mislead. It is clear from sentence that speaker was talking off subject and boring out his audience, so, best suited term from those given above is rambled as the speaker is just speaking aimlessly without connecting to his subject only to prolong his speech.