1)There is a .... of books on the shelf(collect) 2/It is very ... for people is remote areas to get to hospitals (convenient) 3/He is very ... will his hands (skill) 4/it is said that water collected from the local streams is .... to drink(safe) 5/We want ... relation with all countries (friend) 6/I like to eat ...,so i tear a lot of fruits and vegetables every day (health) 7/Phong is a faster swimmer than Phuc (fast) ->Phong swims .........................................