71.   They can earn further credits by helping developing countries avoid carbon emissions.

72.   To them, Parker was the class clown and Tulloch was an honors student who had earned enough credits at Chelsea Public School to graduate early.

73.   U.S. officials said they were seeking to include not only new forestation projects, but also to earn credit for preserving existing vegetation.

74.   Visitors to the site will not earn college credit.

75.   He observed kendo classes and tried to earn credits by submitting reports on them.