question: however, a number of eu rules apply in cases involving two or more eu countries for instance, because you and your spouse live in different countries.
Capitalize this past sentence correctly.
A: However, a number of EU rules apply in cases involving two or more EU countries for instance, because you and your spouse live in different countries.

question: exhibitors from over 100 overseas companies, have advanced world-class technologies and products in it and networking fields.
Capitalize this past sentence correctly.
A: Exhibitors from over 100 overseas companies, have advanced world-class technologies and products in IT and networking fields.

question: stigma. there has yet to be a vr or ar headset that doesn't look conspicuous.
Capitalize this past sentence correctly.
A: Stigma. There has yet to be a VR or AR headset that doesn't look conspicuous.