Sung-su: Did you plant any trees on Arbor Day?
Sarah: What is Arbor Day?
Sung-su: It is a day for planting trees. Very few trees were in Korea many years ago. So a campaign to plant trees has continued since then.
Sarah: Oh, I see. I¡¯d like to plant a tree in my town.
Sung-su: Good idea. I¡¯ll help you.

Preparing Midterm Exam

Hyun-jae: Are you ready for the midterm exam?
Hae-min: No, but I have lots of books to read for it. So I am getting little sleep.
Hyun-jae: You only have one day until the exam. You should have studied in advance.
Hae-min: What should I do now?
Hyun-jae: I will lend you my notebook with summary. You can get more than 20 points in each subject if you study with my notebook.
Hae-min: Okay, thanks.