You offended your classmate John unintentionally today. Write a note to him, expressing the reasons and your deep regret for that. Marks will be awarded for content, organization, grammar and appropriateness.

A．they have just experienced Festive period
B．the work burdens are always heavier in the beginning of a year
C．the weather is dismal in these days
D．there are a lot of unpaid bills waiting for them

A．paper books involve us in the stories
B．people are used to reading paper books
C．people like the physical experience of reading paper books
D．people can read paper books without electronic device