A thesis is the sentence usually used at the end of the beginning paragraph that restates the prompt and gives the basis of what the essay will be about
Wouldst thou have that/ Which thou esteem'st the ornament of life,/ and live a coward in thine own esteem {Apex Answer}
The two sentences that correctly used a dash are the
following:<span>
- The secret to improving your productivity is
simple--get a good night's rest.
- I found something unexpected in my trash
can--a litter of raccoons.
<span>Dashes are used in the sentence when there is an
added information that is not generally part of the sentence.</span></span>