In spite of the advances in medicine, many people around the world still die of easily preventable diseases. Why is this the case? What can be done about this problem?

Nevertheless
, these technologies have some drawbacks.
For instance
: self-driving vehicles work with many sensors, so if one of them will break, the car probably crashes against another car.
Moreover
, as you don´t
handle
Correct pronoun usage
ithandle
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, you are not able to control it producing even more road accidents. Another downside, fewer people will know how to drive, so if the car breaks down, nobody will have the knowledge to drive it. To conclude,
although
, self-driving cars have some cons
such
as technology haven't achieved the maximum development of these types of vehicles yet, the advantages
of
Change preposition
apply
show examples
it will take communities to realize other tasks more productive than driving. It is for these reasons, the benefits of these new cars outweigh their cons.
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Use a variety of complex and simple sentences

You should use complex sentences in your writing, but it does not mean that you should try to make all of our sentences complex.

‘Complex’ sentences are not actually very complex; they are just two or more simple sentences put together. Putting them together makes the essay more coherent and cohesive.

Examples:

I really want to study but I’m too tired.

I wore a warm coat because the weather was cold.

If action is not taken soon on climate change, global warming will get worse.

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