Improve the highlighted part of the sentence given below.
My friend was in hospital for a week $after$ an accident.

Improve the highlighted part of the sentence given below.
The end of the examinations is (an) $opportunity$ for celebrating.

Improve the highlighted part of the sentence given below:
The reason $why\, he\, wrote\, the\, letter\, was\, because$ he could not contact him over the phone.

Improve the highlighted part of the sentence given below.
We were $not$ the wiser for all this effort to explain the case to us.

Improve the highlighted part of the sentence given below.
If you are living near a market place, you should be ready $to\, bear$ the disturbances caused by traffic.

Improve the highlighted part of the sentence given below.
Taxpayers $are\, to$ be conscious of their privileges.