correct prepositions

[Hanka]

Hi,

could you please tell me which prepositions are correct:

1) This item is intended for the sole use of/by the authorized person.
2) It is designed for use of/by the company.
3) These items may not be left in/on/at places without adequate security.
4) These items may not be left in/on/at other premises without adequate protection.

Thanks a lot!

Hanka

[svartnik]

Hi,

could you please tell me which prepositions are correct:

1) This item is intended for the sole use of/by the authorized person.
2) It is designed for use of/by the company.
3) These items may not be left in/on/at places without adequate security.
4) These items may not be left in/on/at other premises without adequate protection.

Thanks a lot!

Hanka

on other premises
at/in places
for the sole use of...
designed for use by

[seyi]

the correction respectively are by, at, at