Asked if his reforms would mean the end of AS-levels, Michael Gove told ITV News:
"The AS-level will survive, but it will be a standalone qualification - half an A-level.
"But for those people who want to do a full A-level course, there won't be that necessary obstacle of having to do exams along the way."
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Prince Harry is in Toronto, the host city of the Invictus Games, ahead of Saturday night's opening ceremony.
The Prime Minister said she expected an implementation period of "around two years" as she called for a "creative" approach to talks.
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