Add or remove apostrophes where appropriate. There are 4 errors to be corrected. College students' are to be offered year-long work experience positions in developing countries under plans to link the UK's domestic policies with parts of the nation's foreign aid budget. "Until recently," say's Janice Geller, a spokeswoman for the Department of International Finance, "British youngsters' had been expected to raise a minimum of £800 towards the costs of the scheme, but in the future that sum will be waived."

College students' (students) are to be offered year-long work experience positions in developing countries under plans to link the UK's domestic policies with parts of the nation's (nations') foreign aid budget. "Until recently," say's (says) Janice Geller, a spokeswoman for the Department of International Finance, "British youngsters' (youngsters) had been expected to raise a minimum of £800 towards the costs of the scheme, but in the future that sum will be waived."

Explanation:

* nations' = presumably in reference to the foreign aid budgets of the developing countries

College students are to be offered year-long work experience positions in developing countries under plans to link the UK's domestic policies with parts of the nation's foreign aid budget. "Until recently," says Janice Geller, a spokeswoman for the Department of International Finance, "British youngsters had been expected to raise a minimum of £800 towards the costs of the scheme, but in the future, that sum will be waived.

removed 3 apostrophes and added a comma