<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>
Answer:
Presentation by an anchor is the answer.
Explanation:
If we're looking for text-based and broadcast news, they wouldn't appear here.
A participle has the form of verb + -ing. So the only such word here is 'smiling' that is the participle in this sentence. It modifies 'woman', that is, it refers to how the woman opened the door - smiling pleasantly.