A．the teacher saves the trouble in doing tha
B．learning is made comfortable in this wa
C．the teacher can easily remember students' names and face
D．brighter students can help slower one

A．New kind of desks and chairs should be mad
B．Many companies are trying to improve the working settings for their employee
C．Classroom interaction between students is essential to the training of critical thinkin
D．A comfortable environment leads to higher working efficienc

A．Arranging the desks in straight rows and providing every minute for the students to listen to the teache
B．Breaking a class into small groups and letting the students find the group they prefer to stay i
C．Putting the students in larger classes and allowing them to discus
D．Breaking a class into small groups and asking the students to stay in the fixed groups as the teacher arrange