A. What do the following refer to? 1. The other' (line 23): The other 2. them' (line 37):
3. which' (line 45):
B. 1. How was fresh air supplied to the diver inside the hard-hat suit?
2. How was unwanted air removed from the hard-hat suit?
3. What were the dangers to the diver inside the hard-hat suit? a) b) Cime rnt
4. Why are flippers worn by divers? 5. What enabled the divers to explore in cold water?
6. What are the parts of the scuba? 7. What is the main advantage of the scuba?
C. Mark the best choice. Which of the following statements is true?
a) Before the 15th century man wasn't able to stay underwater.
b) Although Siebe's diving suit was not successful, it opened the way for later
c) Da Vinci was the first to suggest the idea of supplying air to the diver from an air bag.
d) The idea of moving air around in the diving device belongs to an Italian.

Do you help me ?please

Fred: (waves to sarah) hi, i just moved here. my name is fred. sarah: hi fred. where are you from? fred: florida. the weather here in michigan sure is cold. sarah: i know what you mean, i moved here from san diego two years ago. wait until january. fred: i can just imagine. hey do you mind if i sit with you for a little while? sarah: no, take a seat. i’d love the company during lunch. fred: it’s been hard to meet anyone since i started school last week. sarah: no worries. i know exactly how you feel. i moved at the end of the school year and didn’t get to know anyone. then i spent the summer alone. fred: aw, bummer. it sure is tough to start a new school. sarah: yeah, but when school started again, i met some cool people. fred: i am really shy about meeting new people. sarah: well, i can introduce my friends to you. (bell rings) fred: that would be great! guess lunch is over. it’s been great talking to you. sarah: you too. meet me here for lunch tomorrow and i’ll introduce my friends. fred: great. bye. sarah: later. the conversation between fred and sarah is an example of impersonal communication. select the best answer from the choices provided t f

There are six red marbles 4 blue marbles and 15 green marbles in a jar if you reach in and randomly draw one what is the probability that it will choose a red marble

Match each mode of narration to the excerpt in which it is used.