Sign up for our frequent flyer programme Norwegian Reward and earn CashPoints every time you fly stay at a hotel or drive a rental car

Can you repeat this sentence, but add in punctuation?
Sign up for our frequent flyer programme Norwegian Reward and earn CashPoints every time you fly, stay at a hotel or drive a rental car.
On 4 January he was back at the university and started to teach his game theory course

Can you repeat this sentence, but add in punctuation?
On 4 January he was back at the university and started to teach his game theory course.
70 consider themselves to be a full time occupation and 30 as an occupation micros do not see themselves as hobbyists

Can you repeat this sentence, but add in punctuation?
70% consider themselves to be a full time occupation and 30% as an occupation micros do not see themselves as 'hobbyists'