To select text in your document using just your mouse, try some of the following
To select a Word, double click on the word.
To select a line of text, click in the left hand margin next to the sentence you want.
To select a paragraph, click three times on the paragraph or twice in the left hand margin next to the paragraph you want.
To select a sentence, hold down the CTRL button and click anywhere on the sentence.
To select your entire document, click three times in the left hand margin.
