Past passive voice.....

[rannma]

Dear Teacher,
What is the past passive voice of the sentence..........

:Always use both hands when carrying the microscope, one hand at the base and the other holding the arm. Walk with it close to your body.

: Set the microscope at least 5 cm from the edge of the table.

[Robert B. Mercer]

:Always use both hands when carrying the microscope, one hand at the base and the other holding the arm.
Both hands were always used when carrying.....
PAST because of the WERE, PASSIVE because the sentence never tells you WHO was using both hands..

Walk with it close to your body.
It was carried close to the body.
This example is almost impossible to make passive. A PASSIVE sentence does not answer the question WHO did something... but if a microscope is carried close to YOUR body, well, um.... I think YOU did the carrying. So "It was carried close to the body" is -almost- not really passive.


: Set the microscope at least 5 cm from the edge of the table.
The microscope was set at least 5 cm....
(This is a much clearer example. This is PAST because of the WAS... it it PASSIVE because the sentence never says WHO set the microcope there... the microscope was there, but the sentence does not tell you who put it there.)

[rannma]

Dear Mr. Robert Mercer,
Thank you very much for the help I really appreciated it.

[Robert B. Mercer]

My pleasure.

Also, in my experience, you would call someone "Robert Mercer" or "Mr. Mercer," not Mr. Robert Mercer.... you use Mr to be formal, so in those cases you would not use the first name. If you use a first name, you are not formal, so do not use Mr.

"Rannma, this is my brother, Tom Smith."

OR

"Rannma, this is my teacher, Mr. Smith."

EXCEPTION

If you introduce one teacher to a peer, to a different teacher, to an audience of peers, you use Mister... because you use the formal name when you talk to your teacher. BUT you know that your teacher might want to be friendly with the other teacher and use the their first name,
THEN I would say,
"Miss Thompson, this is my English teacher, Mr. Tom Smith.... Mr. Smith, this is my math teacher, Miss Susan Thompson."

This is especially important because perhaps I do not want to use my first name... if you introduce me to your father as "Father, this is my teacher, Mr. Mercer"... I can just say:

"Hello Mr. Rannma,"
OR
I can say "Hello Mr. Rannma, please, call me Robert."