What do these mean?

Question

“For goodness sake”

“Star-crossed lovers”

“Good riddance”

“The green-eyed monster”

“The apple of her eye”

“Sweets to the sweet”

“Too much of a good thing”

“Knock, knock! Who’s there?”

Answer 1

1. Please try to be reasonable...

2.

3. Obstacle or hindrance is out of the way

4.

5. Her most precious thing

6. Treat one as one treat others

7. Seeing only good things while the bad things are not immediately visible

8. Speaker's or actor's line? :-)

Answer 2

All of them??

I'll take a couple..

"The green-eyed monster" means jealousy.

"The apple of her eye" means the person you love most in the world.

Some of those aren't really even sayings and they're kind of self-explanitory.

Answer 3

1. its like "come on", or be responsible

2. two ho are ment to be for each other

3. an obstacle is gone

4. its jealousy

5. the most precious 4 her

6. treat others as they treat u, "rebay good by good"

7. u see only the good in life

8. if ur talkin 2 som1 and hes absent-minded, u say this 1