Answer:
After changing the pronoun focus, the sentences can be:
Walking is one of the best forms of exercise because it helps one lose weight and improve one's cardiovascular systems while one enjoys being outside in the fresh air.
(Alternative answer - see the explanation below)
Walking is one of the best forms of exercise because it helps people lose weight and improve their cardiovascular systems while they enjoys being outside in the fresh air.
Explanation:
When writing formally, we must avoid permeating our texts with sentences that are too personal. Formal writing demands impersonality, which makes it sound more trustworthy and unbiased. Therefore, using the first person "I" should be avoided. One way to substitute it is by using the pronoun "one", as we did in the first answer above. Some people find it difficult to use "one". If that is the case, we can always use "you" or "people". These do not sound as formal as "you", but are still less personal and informal than "I".
Answer A makes sense for me
the other sentence is B therefore
because therefore means so
my teacher was very ill therefore (so) a substitute was called to finish the day
Mrs. Louis could ask Mr.Hollembeak for <em>further details about his findings and report.</em>
The discussion <em>aims to get the thruth</em> about a possible leak of information by not properly encrypted files. Mr. Hollembeak defends himself stating that concerning his knowledge and responsabilities he is innocent of any negligence for his department's security protocol was up to date.
If Mrs. Louis wants to be an effective participant in the discussion she could ask Mr.Hollembeak further details about his findings and report in order to discover any contradictions in his statement and then feel free to move to another topic.
A. It is the only one that has the person himself speaking
