听一段材料，回答下面几个小题。
How will the students go for their trip?
A. By bus.
B. On foot.
C. By train.
What should the students do before the trip?
A. Write up a report.
B. Go through the handout.
C. Eat a big lunch.
What subject are the students most probably studying?
A. Something about animals.
B. Something about cooking.
C. Something about trees.