Like adjunct and addition, both are defined as 'to add', so they are synonyms.
In the choices, the best answer would be c. straits : hardship.
Abstentions is to abstinate, absence is not being present
<span>Commodiousness is having a lot of space, size is a fixed proportion
</span>Conjugation is verb changes, nouns are simply names
Straits is something that causes distress, hardship are challenged
<span><span>C. Have you ever wanted to play tag with the whales?</span></span>
<span>Choice C is the best choice as
a “hook” to catch the reader’s interest in reading your essay. First, it is
directed to the reader as an invitation to get involved. Secondly, it gives a
new insight that whales can also be playful like dolphins. Thirdly, whales
although not really as threatening as sharks are huge animals. To play tag with
them would be very challenging and an almost impossible thing to do. Choices A
and B are just declarative statements that inform and do not have an emotional connection
to the reader; while D can be used as a supporting statement to choice C.</span>
Conjunctive adverbs are not strong enough<span> to join independent clauses without supporting punctuation. Use a </span>comma<span> if a conjunction </span>such<span> as and, but, or, or so appears between the conjunctive adverb and the </span>first<span> clause.</span>
