were = they were seen together yesterday
where = where abouts did you see them together.
So 'where' would be correct. "Where are things at" is not the correct use of English - I believe it is slang for 'what is happening' or 'what is the news'. It is better not to use slang.
"Where are things?" is better because it doesn't end a sentence with a preposition. However, in modern spoken American English, that rule is mostly ignored. When asked about the rule, Winston Churchill said, "The rule forbidding a preposition at the end of a sentence, is a pedantry, up with which, I will not put" The odd avoidance of "put up with" at the end of the sentence proves the point that the rule is pointless.
However, "Where are things at?" does sound less educated, if not strictly incorrect.
That is the correct spelling of the plural noun "necessities" (things generally required).
Yes, things are on hold is grammatically correct.
"In relation to" -- things are related "to" other things not with them.
"So few" is correct for things that may be counted.
The correct spelling is "Irish" for people and things of Ireland.
The things were put in the correct place. The things were put in the correct places. The things went automatically to their correct place.
It seems correct.
It is correct to say "used to do".
That is the correct spelling of the plural noun "necessities" (things generally required).
To find out how things works, and to find out if your theory about how things work is correct.
Yes, things are on hold is grammatically correct.
"In relation to" -- things are related "to" other things not with them.
Analysing is basically checking that the spreadsheet is correct. Things like the correct formulas are there and they are referring to the correct cells, and the correct values are being used in the cells.
basophobia
"So few" is correct for things that may be counted.
The phrase "sneezing hard" is not correct grammar. The correct grammar could be a few things based on what you really meant.
"It is I who have to work" is the correct sentence. In this construction, "I" is the subject pronoun, so it should take the corresponding verb form "have."