Which sentence is correct?

Classes are too big and there are enough teachers unexperienced, nowadays.

Nowadays, classes are too big and there aren't enough experienced teachers.

Nowadays, classes are too big and there aren't teachers enough experienced.

Classes are too big and there aren't experienced teachers enough, nowadays

Non so rispondere

To teach adolescents it's very difficult

Teaching adolescents it's very difficult.

It's very difficult teaching to adolescents.

It's very difficult to teach adolescents.

Non so rispondere

The social networking site Facebook is often using to create groups for people with similar interests

The social networking site Facebook is often use to create groups for people with similar interests

The social networking site Facebook is often used to create groups for people with similar interests

The social networking site Facebook is often used to creating groups for people with similar interests

Non so rispondere

Human Resource Management is the organization of an employees management.

Human Resource Management is the organization of management employees

Human Resource Management is the organization of a management employees.

Human Resource Management is the management of an organization's employees

Non so rispondere

eTwinning is the Community’s for schools in Europe.

eTwinning is the school’s Community in Europe

eTwinning is the Community schools in Europe

eTwinning is the Community for schools in Europe. eTwinning is the Community schools in Europe.

Non so rispondere

A European Language Portfolio is a document in which learners can recording their learning language and cultural experiences

A European Language Portfolio is a document in which learners can record their language learning and cultural experiences.

A European Language Portfolio is a document in which learners can record their learning language and cultural experiences

A European Language Portfolio is a document in which learners can to record their learning language and cultural experiences.

Non so rispondere

Awareness of preferred one’s learning style may help to explain why some aspects of learning seem easier than others.

Awareness of one’s preferred style learning may help to explain why some aspects of learning seem easier than others

Awareness of one’s preferred learning style may help to explain why some aspects of learning seem easier than others

Awareness of one’s preferred learning style may help to explain why seem some aspects of learning easier than others.

Non so rispondere

A number of Internet sites admit that some applications pass personal information to marketers without the users’ knowledge.

A number of Internet sites admit that some applications pass information personal to marketers without the users’ knowledge

A number of Internet sites admit that some applications personal information pass to marketers without the users’ knowledge.

A number of Internet sites admit that some personal information pass applications to marketers without the users’ knowledge

Non so rispondere

A trade union is an organised of workers association formed to protect and further their rights and interests

A trade union is an organised association formed of workers to protect and further their rights and interests.

A trade union is an association organised of workers formed to protect and further their rights and interests

A trade union is an organised association of workers formed to protect and further their rights and interests.

Non so rispondere