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Answer:
These days, aspirin is used to treat a variety of aches and pains. Its medicinal properties have been known for over three thousand years. Even Hippocrates, the Ancient Greek who is often referred to as the 'father of medicine', knew about it. Indeed, historians believe that aspirin was prescribed for headaches long before Hippocrates' time. However, it was not manufactured in its present tablet form until the end of the 19th century when a scientist working for the drugs company Bayer synthesised aspirin for the first time.
The correct form of the verbs in brackets will be as follows,
1) is used
2) have been known
3) is often referred
4) was prescribed
5) was not manufactured
What are Verbs?
A verb is a word that we use to refer to actions (what things do) and states of being (how things are). These are words that describe actions, whether physical or mental.
Sentences are not complete without a verb. A verb is a main part of speech that is often used to describe or indicate an action.
Learn more about Verb here,
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