Opportunist in a sentence?

Because their collegue only voiced his opinion after everyone else agreed with the president of the company, he was deemed and opportunist by taking advantage of the situation.

She was an opportunist, and thus never turned down any chance to get ahead.

He was an opportunist so he took the free ticket and went to the conscert.

He's such an opportunist that he'd sell his grandmother for inside information.The land was quickly purchased by an investor, a shady opportunist from New England.

The subject and predicate carry most of the content of a sentence.