
34.The examples in paragraph 5 are used mainly to illustrate
A.a good language learner promises to be good at math
B.a student might join different groups for different courses
C.ability grouping benefits gifted students more than slow ones
D.ability grouping presents no challenge for those slow students
35.What might be the challenge in regular classrooms for teachers?
A.Students'different levels.
B.Students'low performance.
C.Constant self-comparison.
D.Application of not-so-secret code names.