<span>The only place for the topic sentence is in the beginning as its purpose is to attract readers so that they would like to read a work till the end. So, to answer your question, the topic sentence should never be in the last lines, where the conclusion <span>of the whole work is written.</span></span>
An onomatopoeia is used to increase the senses or describe a situation without the use of further words. They may also be used to add humor or other emotions to the poem