Answer:
1- Must
2-Must not
3-Dont have to
4-Should
5-can
6-should
7-Might
8-There is an error in the sentence.
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Answer:
Every day at 4 p.m., my brother and I send radio messages to Mars to communicate with aliens who live there.
Explanation:
It is like a dug because there is a change in the brain cells that grow more adenosine receptors, which is the brain’s attempt to maintain equilibrium in the face of a constant onslaught of caffeine, with its adenosine receptors so regularly plugged. This explains why regular coffee drinkers build up a tolerance over time, it takes more caffeine to block a significant proportion of them and achieve the desired effect which is why it is so addicting. It is not as bad as a worse drug because the effects of caffeine <span>are relatively short-term.</span> Caffeine is a stimulant that affects the nervous system in various ways.
<h3>How does paragraph 5 refine the ideas about brain research in paragraph 3?</h3>
<em>Answer : To achieve all the benefits from musical training, the students have to be active participants and they have to learn to play musical instruments, especially at an early age.</em>
You use" " which are called quotation marks
