The students were keen to getting more marks vs The students were keen on getting more marks

Some examples from the web:

• We were keen to build momentum but he got sidetracked.
• You also said that you were keen to see the role of national parliaments strengthened.
• They were a good bunch and they were keen to learn.
• This is a brief outline of the reforms which I am preparing with my colleagues, several of whom were keen to accompany me here today.
• I remembered you were keen to get your hands on it a while back.
• Nonetheless, we did so because we were keen to ensure that the Convention could be launched tomorrow.
• So we were keen to scale this up and apply biomimicry ideas to maximize the benefits.
• Several judges from Germany were keen to see the ECJ's jurisdiction fully expanded to the areas covered by Titles IV EC and VI EU, in particular asylum and immigration.
• This conflict meant agencies were keen to give high ratings to complex financial instruments, which led to investor complacency when buying these products.
• You can understand, then, why governments were keen to ensure sufficient guarantees before renouncing national monetary sovereignty in favour of a common currency.
• You were keen to include this subject in today's agenda and I welcome that initiative.
• We are pleased that, during the hearing you organised, the infrastructural people were keen to apply the European rail signalling system (ERTMS).
• Development cooperation was at that time viewed as a national preserve, and Member States with few or no former colonies were keen to keep national control over the level of their contributions.
• So we were keen to make sure that the strategic framework was in place and that it was the right one.
• One of the things that we were keen to do in our committee was not just to look at this in isolation but to look at what was going on outside.
• In the Top Gear office, the team were keen to know more about the P50.
• Yes, and the producers of the show were keen to demonstrate that they never got anything right at all, so they came up with a series of challenges.
• Otherwise, we judge the Costa Neves report in a positive light, but we were keen to emphasise this minor technical error with regard to Amendment No 75.
• So we were keen to scale this up and apply biomimicry ideas to maximize the benefits.
• However, MEPs were keen to ensure that safety issues were not used as an excuse to hinder the approval of rolling stock and the creation of new railway undertakings.

Some examples from the web:

• The changeover showed also that the Europeans were keen on adopting their new currency.
• None of the others were keen on the terms.
• All the great generals were keen on seafood.
• But I thought you were keen on the idea.
• Many of those voting 'no' were keen on the European idea, but wanted Europe to act in a different way.
• They were keen on reading it and knowing more and more about periods on their own.
• The students were doing very complicated equations in a high-stress environment.
• While the students were taking a bath, someone stole their money.
• Two of the students were hospitalized.
• The students were genuinely interested in the agency and asked intelligent questions.
• The students were protesting chiefly about a new system affecting their degrees and about bad university management.
• What was the name of that girl we were keen on?
• And now: Kurt Maj Enterprlses has always been very keen - on getting cheap, alternatlve energy resources for the Danes.
• Whatever it is, it's pretty keen on getting the talisman.
• I thought the students were here to learn how to cure diseases and help people.
• On the yard of the Warsaw University the students were chanting a slogan "There's no bread without freedom".
• I can tell for sure where several of the students were when the lights went off.
• The students were 270 young men, expected to be the future leaders of the most isolated and brutal dictatorship in existence.
• Even then, our trips were limited to sanctioned national monuments celebrating the students were not allowed to leave the campus, or communicate with their parents.
• The students were not allowed to leave the campus, or communicate with their parents.