I like lasagna but, I don't like cheese.
I like lasagna, but I don't like cheese.
Moreover,
Transition/Linking word
We prefer to eat, sleep, and playing.
We prefer to eat, sleep, and to play.
El salvador is growing thanks to investment.
El Salvador is growing thanks to investment.
There are several important aspects of pollution that can affect our health.
Introduction
She is lucky, because she always finds the answers.
She is lucky because she always finds the answers.
I like to dance, and sing.
I like to dance and sing.
First, we have a perfect nightlife.
1st idea/topic sentence.
The evening was warm and it was time to catch fireflies.
The evening was warm(.) (fanboys) it was time to catch fireflies.
Topic sentence: Three effects of pollution.
These are / There are three effects of pollution.
To finish, students do not have time to study.
Last, third topic sentence (idea).
Second, Next, Moreover, On the contrary, Also....
On the contrary doesn't introduce a topic sentence.
You can see the Eiffel Tower in Paris, France, also, you can visit many historic places there.
You can see the Eiffel Tower in Paris, France. Also, you can visit many historic places there.
This means that pets are also part of the family.
Supporting/Detail/Example sentence.
Businesses create new jobs, most of the training is implemented by specialists in the tourism area.
Businesses create new jobs (.) (;) most of the training is implemented by specialists in the tourism area.