Answer:
1: It's strange how fast I've become nearsighted.
2: We have just occupied Vienna; a far-sighted man could have foreseen the possibility some considerable time ago.
3: Airy, the astronomer, corrected his own astigmatism by means of a cylindrical lens.
4: She wanted to learn more about the vertical adjustments that need to be made in many strabismus cases.
5: He was aware of the danger of accidentally causing amblyopia of the better eye by treating children below the age of six.
Explanation:
Traditional dental fillings are usually made of silver amalgam, but can also be other materials like cast gold. The strengths of a traditional filling include: Strength and durability. Useful for back teeth that are used more forcefully. Less expensive than composite alternatives.
I think the human behavior is free
A- the pill
B- male condom
C- spermicidal cream
D- IUD
hope this helps!
