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>
Answer:
B:Free public transportation would encourage more people to ride buses and trains,which cause less pollution than cars do.
1. ) <span>Vanikoro >> site of two shipwrecks
2.) </span><span>" a fine death for a sailor " >> " a coral tomb "
</span>3.) Gilboa >> <span>island where Aronnax and friends are allowed to go ashore
</span>4.) <span>Straits of Torres >> entrance to the Indian Ocean
</span><span>5.) La Perouse >> commander of the La Boussole
6.) " an incident " >> </span>the Nautilus<span> runs aground</span>
