1-v (apple of one's eye - a person who is very precious or important), 2-iii (in the blink of an eye - something that happens very quickly), 3-i (keep an eye on something or somebody - watch something or someone closely), 4-ii (turn a blind eye - act as if you do not see or notice), 5-vi (see eye to eye - agree with each other), 6-iv (bird's-eye view - an overall look at something)