口二：a busy schedule or a lighter schedule, which one do u perfer?
口三：
Reading:
letter from a student: 礼堂内held gradute ceremony 改成在lawn held.
R1: big space
R2: 不记得。。。
Talking:
1. 礼堂space is enough
2. 在礼堂举行可以watch through TV
口四：social reponsbility——companies recognize obligation后可能会有经济损失
Example: a coffee shop以前用plastic cups，后来意识到环境问题，就用a new type cups,就是用纸杯，并且给consumer who use旧杯子discount.
口五：club affair 和radio club tomorrow时间有冲突
口六：两个不同的盒子，一个open, the other closed, 让两组实验rats 进去找食物——mother rats and non-mother rats。 相比之下mother rats 更brave and confidence, bcuz mother rats need to search food for their babies