Answer:
1.If
2. Since
3. Thus
4. Moreover
5. Because
I am sorry if my answers are wrong.
The answer is: <span>
c. should, have, could
In English Literature, Helping verbs refer to the verbs that help other verbs to extend its meaning in the sentence, explain the mood in the sentence or add additional details on time. Helping Verbs usually only used in Complicated Tenses
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The depression of the 1930s.
I'm pretty sure the answer is C
It is not a article hope this helps!
