1. down on
2. forward to
3. out for
4. look after
5. up
careless of - it was very careless of you to forget your passport.
keen on - she's very keen on travelling.
good at - he's very good at geography
enthusiastic about - the teacher was very enthusiastic about my project
bad at - she's always been bad at grammar
careful to - they were careful to avoid the midday sun