1)I am looking forward to __________ my holiday.a)have; b)having.2)He is keen

1)I am looking forward to __________ my holiday.
a)have; b)having.
2)He is keen on ________ fit.
a)to keep; b)keeping.
3)Myfriend suggested _________ on holiday.
a)hitch-hike; b)hitchhiking.
4)I dont think that your children are used to ______ early.
a)getting up; b)having got up/
5)My parents are used to _____ in the countryside.
a)to live; b)to have lived.