How to translate "to" and "from" in Chinese?
Usually on the envelope of the letter such words as "to" and "from" are written. How to translate these words to Chinese? Are
到 and 给谁 the right variants ?

Question

How to translate "to" and "from" in Chinese?
Usually on the envelope of the letter such words as "to" and "from" are written. How to translate these words to Chinese?  Are
 到 and 给谁 the right variants ?

Answer

On the envelope, you can simply do it like this:
收：somebody, somewhere = To: somebody, somewhere
寄：somebody, somewhere = From: somebody, somewhere

Answer

get something from somebody
get something  從    somebody

"to"is a preposition,we usually don translate this word

Answer

致：xxx
自：xxx

Answer

It depends on context. 给谁 = to whom, like: "Can you give it to her" then you said: 给谁 in case you don't know her.

Answer

到 and 給誰 are the right variants to the word " to" , and you also can use "收" （receive）
從 and 誰給的 are the variants to the word "from" , and you also can use "寄"  （send）