Improve the highlighted part of the sentence given below.
As he is past his teens now,he can look $for$ himself.

Improve the highlighted part of the sentence given below.
It became clear that the strangers were heading $into$ a serious disaster.

Improve the highlighted part of the sentence given below.
The poor villagers $have\, waited$ in the bitter cold for more than $4$ hours now.

Improve the highlighted part of the sentence given below.
This telephone number $is\, not\, existing.$

Improve the highlighted part of the sentence given below.
It was indeed a shock for her,but she has $later$ recovered from it.

Improve the highlighted part of the sentence given below.
Most donors would seriously $protest$ any effort to extrapolate from such limited data.