A sentence which begins with "I wonder..... " is usually ended with a question mark, as it is normally a way of phrasing a question.
Did you manage to finish your sentence?The correct usage would be "did you manage to finish?"
Lions. A pride of lions.
An enamel finish is more durable than a lacquer finish.
He would gaze into her blue eyes and wonder what she thought .
Yes, it would be recommended.
i was the first one to the finish line but i floundered when they said my name.
I need to generate enough energy to finish my homework.
Satin or a matte finish would look good in this area.
There's the last bushel of corn! I wonder what the price of a bushel of beets would be today.
It would most likely end around 5 with commercials.
For expressiveness, people start a sentence with 'for'. For example, Stevie Wonder: 'For once in my life I have someone who needs me...' Or: For heaven's sake, all these pesky questions!
A period would go inside parentheses to finish a complete sentence, but you always need sentence-ending punctuation outside of the parentheses.