(Should be _unfits_ to agree with subject _one_.)

(3) "The Tibetans have engaged to exclude from their country those
dangerous influences whose appearance _were_ the chief cause of our
action."--_The Times_.

(Should be _was_ to agree with _appearance_.)

(4) "An immense amount of confusion and indifference _prevail_ in these
days."--_Telegraph_.

(Should be _prevails_ to agree with amount.)


ELLIPSIS

Errors in ellipsis occur chiefly with prepositions.

His objection and condoning of the boy's course, seemed to say the least,
paradoxical.

(The preposition _to_ should come after objection.)

Many men of brilliant parts are crushed by force of circumstances and
their genius forever lost to the world.

(Some maintain that the missing verb after genius is _are_, but such
is ungrammatical. In such cases the right verb should be always
expressed: as--their genius _is_ forever lost to the world.)