21.   The researchers had no definite answer as to why the programs were having negative effects on the adolescents.

22.   The question is legitimate, because there is no definite answer.

23.   We cannot get a definite answer as to whether we can donate the bonds and how it can be done.

24.   Peres told reporters Thursday that Spain may agree to take three or four of the men and that Italy had not given a definite answer.

25.   But Nikola Koljevic, the senior Serb at the talks, said he could give no definite answer.

26.   During a meeting with the college authorities, my daughter and her coursemates were not able to get any definite answers to their questions.

27.   I have contacted the developer, Sinar Fadzilat Sdn Bhd, but again it did not give a definite answer.

28.   Serb negotiator Nikola Koljevic said he could give no definite answer.

29.   There is no definite answer.

30.   Tomba has hinted lately that this could be his last season, but he refuses to give a definite answer.