Punctuating lists in subordinate clauses

English

An idea that can be understood by itself.

An idea which does not make sense by itself.

Which of these is the correct way of punctuating a subordinate clause before an independent clause?

At break time Sophie decided to eat her apple.

At break time, Sophie decided to eat her apple.

Sophie decided to eat her apple at break time.

Sophie decided to eat her apple, at break time.

Which of these is the correct way of punctuating a subordinate clause after an independent clause?

Bring your swimming costume and towel and goggles and swimming hat to practice.

Bring your swimming costume, towel, goggles and swimming hat to practice.

Bring your swimming costume, towel, goggles, swimming hat to practice.

Bring your swimming costume; towel; googles; swimming hat to practice.

Which of these sentences has the correctly punctuated list?

Rather than revise for his test and do his homework and tidy his room, David decided to watch TV.

Rather than revise for his test, do his homework or tidy his room David decided to watch TV.

Rather than revise for his test, do his homework or tidy his room, David decided to watch TV.

Which sentence has the subordinate clause list punctuated properly?

The new musical theatre club will rehearse at the community centre on a Tuesday evening Wednesday evening and Saturday morning.

The new musical theatre club will rehearse at the community centre on a Tuesday evening, Wednesday evening and Saturday morning.

The new musical theatre club will rehearse at the community centre on a Tuesday evening, Wednesday evening, Saturday morning.

There is a comma after the independent clause, before the next subordinate clause.

There is not a comma before the independent clause.

There is nothing wrong with this sentence.

What's wrong with this sentence? "Although it was Tuesday afternoon, Charlie decided to go to the sweet shop, down the road."

There is not a comma before the independent clause, after the first subordinate clause.

What's wrong with this sentence? "at the football match, He decided to buy chips but he dropped them when cheering."

What's wrong with this sentence? "During my drama exam, I forgot all my lines because I was so nervous."