Topic sentence
Robots can already clean floors and windows.
Concluding sentence
We can use computer software to communicate with robots and give them commands.
The answer is A: direct questions to the audience to encourage participation.
There are many ways that the speaker uses to demonstrate his or her interest and interation with the audience such as eye-contact, tone of voice etc. However, <em>directing questions is the most effective way to involve the audience</em> which helps them feel <em>more than mere spectators</em>, <em>specially if is allowed time for them to answer followed by some recognition for their contribution.</em>
the meaning of the word true is sacho balnu in the harluem poem
He must have really enjoyed the visit to IFF plant in New Jersey. IFF might have attracted him because of their good discovery of flavors fragrances and cosmetic ingredients have inspired and delighted him to include so much detail.