Can you correct these errors which appeared in students' writings?

1. Love, friendship, good and evil, courage, trust, justice etc. all these are included. / ...Turkey, Ghazaghistan, and North India etc.

1. Love, friendship, good and evil, courage, trust, justice, etc.; all these are included. / ...Turkey, Ghazaghistan, and North India, etc. ...

2. I chose a very famous tv serie called "how I Met Your Mother". / Ted tells the kids: "this is how I met your aunt Robin". / This video is a speech made by Jay Walker, about people called "English Mania". / The one who first jumps out of the car loses and is named a "chicken", or a coward.

2. I chose a very famous TV series called "How I Met Your Mother." / Ted tells the kids: "This is how I met your aunt Robin." / This video is a speech by Jay Walker about "English Mania." / The one who first jumps out of the car loses and is named a "chicken," or a coward.

Quotations and Punctuation Marks

3.  She has stopped her study for working and paying the study of her sister. / She doesn't look happy by her way of life. / Jerry became mad of what he heard. / The doctor was at a surgery. / He is very excited to sightseeing. / He tries to discourage her to do such a thing. / ...to undertake a trip toward Alaska.

3.  She has stopped her study to work and pay for the study of her sister. / She doesn't look happy about her way of life. / Jerry became mad about what he heard. / The doctor was in surgery. / He is very excited about sightseeing. / He tries to discourage her from doing such a thing. / ...to undertake a trip to Alaska...
 

4. Thea will finish to fall in love. / The owner was facing difficulties to feed and take care of the snakes. / He has a lot of difficulties to fit into his new high school.y

4. Thea will finish by falling in love. / The owner was facing difficulties feeding and taking care of the snakes. / He has a lot of difficulty fitting into his new high school.

Gerunds after noun + preposition

More about gerunds and infinitives

5. The explosion was 6 or 7 seconds later. / Jay and Gloria remarried 6 months ago. / Jay is about 20 years older than Gloria.

Ten Rules for Writing Numbers and Numerals

6. He tries to explain "why are we feel happy" to the audience. / He asked "English mania is good or bad"?

Embedded Questions

Discussion questions: Was 9/ll a hoax perpetrated by the US government? Is "English Mania" a good thing?

What is a Comma Splice?