Topic, narrowing, topic sentence, and supporting details

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Hi everybody I want to submit some topic, narrowing, topic sentence, and supporting details. And I want from you if anyone notice any mistake plz correct to me, because I want to know my error and thanks.

First I want to give you example:
Topic: Driving
Narrowing the topic: Driving on freeways
Topic sentence: Driving on freeways requires skill and alertness.


Know my solved.

Topic: Food
Narrowing the topic: Healthy food
Topic sentence: Healthy food essential for body growth.

Topic: Teaching
Narrowing the topic: Teaching in university
Topic sentence: Teaching in university requires more intensive efforts.

Topic: Studying abroad
Narrowing the topic: English studying
Topic sentence: Studying abroad is not easy as you expect.


Right know I will write supporting details:
Collage students have a stressful life.
Supporting details 1: First reasons: Some students are working and learning in the same time.
Supporting details 2: Second reasons: Some students have problems in financial situation.

Learning English requires a lot of time and effort.
Supporting details 1: First reasons: to make language better.
Supporting details 2: Second reasons: Help you to studying the materials that required a good language.

[فاتح القدس]

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[smack]

you are welcome my brother

[ツأميمة الأحمديツ]

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[smack]

you are welcome my sisters and with abundant thanks for reading my subject