A26:
1Other factors contribute to the winning these competitions.
2The case during the past 5 years cannot represent it will last in the future.
3It is ungroundless that improvement of the music rehearsal facilities and musical instructions is because of this special staff.
4The method of C is not suitable to S.
A27:
1The president fails to prove that there are still significant number of our employees would leave Automate if the company does not raise its employees’ salaries.
2 We need to know what fraction of our employees left for Sparks
3Other factors make this result.
4The president does not consider other measures to keep its valuable employees rather than raising the salaries.
A28:
1May the students, participating the breakfast plan ,who would less likely to be absent from school or late for school , contribute to other factors.
2The participants of the study may not be representative of all schoolchildren.
3The better performance of the children cited by the superintendent may results from other reasons rather than eating breakfast regularly
4The superintendent does not prove that the district’s breakfast would be healthy enough, or that our students will eat the breakfast regularly.