A.Producing non-radioactive cell phones.
B.Making cell phones more attractive.
C.Adding more interesting games to cell phones.
D.Designing user-friendly cell phones.
A.It was not well-written.
B.There are many others liking it.
C.It lacked preliminary research.
D.Its ideas were weak.
A.To show that too many words are of no use.
B.To show that the English prefer to make long speeches.
C.To show that even talk and silence can be culturally different.
D.To show that people from Thailand are quiet and shy by nature.