possessive nouns

Front

Which sentence is correct?

Alexanders' cat ran away.

,

Alexander's cat ran away.

,

Alexanders cat ran away.

Back

Alexander's cat ran away.

Front

Which sentence is correct?
Options:

The students desks were new.

,

The student's desks were new.

,

The students' desks were new.

Back

The students' desks were new.

Front

Which sentence is correct?
Options:

Let us go to Gael and Jonathan's house.

,

Let us go to Gael's and Jonathan's house.

,

Let us go to Gaels and Jonathans house.

Back

Let us go to Gael and Jonathan's house.

Front

Which sentence is correct?

I washed my cars windows.

,

I washed my car's windows.

,

I washed my cars' windows.

Back

I washed my car's windows.

Front

Which sentence is correct?

The girls balls went over the fence.

,

The girl's balls went over the fence.

,

The girls' balls went over the fence.

Back

The girls' balls went over the fence.

Front

I really like my ______ cookies.

Back

grandmother's

Front

The car belongs to Nicole.

Back

It is Nicole's car.

Front

Wes has a towel. It is ___.

Back

Wes' towel

Front

Tim has a box. It is ___.

Back

Tim's box, Tim's box.

Front

The boys have shirts. Those are the ___.

Back

boys' shirts, boys' shirts.