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.
Most donors would seriously $protest$ any effort to extrapolate from such limited data.

Improve the highlighted part of the sentence given below.
The greatest thing in style is to have a $use$ of metaphor.

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

Improve the highlighted part of the sentence given below.
If you $cross\, the\, line$ you will be disqualified.

Improve the highlighted part of the sentence given below.
The logic of the Berlin Wall $already\, had\, been\, undermined$ but when the news came through that the wall itself had been opened,$I$ jumped into a car.