Verbal Ability - Spotting Errors - Discussion

At shows stationary position or existing states while In shows movement. At is used for small places, town etc while In shows big places, towns, city, country etc. At is used for point of time while In is used for a period of time.

Examples:
1) She is at home. (Here at is used with home because home is stationary means it is not moving).
2) The train is in motion. (Here in is showing the moving state of train).
3) HPCA (Himachal Pradesh Cricket Association) stadium is at Dharamsala in Himachal Pradesh. (Here at is used with Dharamsala because it is a small city while in is used with Himachal Pradesh because it is a big place).
4) The train will arrive at six in the morning ( Six: point of time, morning: period of time).

Other uses of At/In:
-> At is used for a precise time.
-> In is used for Months, Years, Centuries, Long Periods.
-> At is used for a point.
-> In is used for an enclosed space.

Using At, In, On Based on time:

At - is used for very specific period of time.
eg: At 3'o clock, At 6'o clock, at midnight, at noon...

On - using for one day or one date.
Eg: on monday, on friday, on new years day, on 25th, on 9th...

In - Wider period of time.
like moths, years, seasons, decades...
eg:I was born in summer, I was born in 1990...

Based on places:

At- specific location or Place
Eg- I live at #123 address, I'm at home,
I'm at rupa's home,
I'm at theater.

On- surface(horizontally and vertically) of the area.

Eg- I'm on the road (road is surface) .
My favorite show on TV is (Tv Screen is surface) .
In- something which is enclosed area.
I'm in school.
I'm in car.
I like to study in my bedroom.

If you have any doubt, you are free to ask.

People get very confused about these two prepositions, but there are a couple of simple tips you can use to help yourself remember how to use them.

In, as a proposition of the place is usually used to talk about the position of someone or something inside large places such as countries, continents, big cities etc.

For example:-.

She grew up in New Zealand.

At, as a preposition of place, is usually used to talk about the position of someone or something inside small and unimportant places such as villages, small towns etc.

AT - exact time (my office opens at 9 am), speed (she drives her at 120 km) , building& events.

Ex: I'm at home, I'm at a hotel, I'm at a party, etc.

IN - we should use it when the noun is indicating the place or area.

Ex: I'm in Chennai, she is in this room, my dad is in the USA.

I was born in Chennai at KMC hospital. But also use IN - (month, year, seasons, long periods)

ON - day, date, electronic device.

Ex: He is on the phone, on a laptop, I'm on the train.

The sentence "I could not put up in a hotel" has an error in the usage of the phrasal verb "put up. ".

Explanation:
The phrase "put up" means to tolerate or endure something, or it can mean to provide lodging for someone.

However, when referring to staying temporarily at a place, the correct phrase is "put up at".

The sentence should be corrected as: "I could not put up at a hotel".

This conveys that you were unable to stay at a hotel.

'in'- for a enclosed space(year , month , country ,state ,city)

Ex: in london, in a car , in the garden etc.,

'at' - for a point(time ,address ,street)

Ex: at home ,at work , at school , at reception etc.,

When will you arrive at the office?
Jane is waiting for you at the bus stop.
I have a meeting in New York.
Do you live in Japan?

Use the word in when you are discussing cities, towns, and countries.

Ex. Dorothy lives in Kansas City.
You are going to live in Switzerland.

Use the word at when speaking about direction, street addresses, or position.

Ex. Bamby lives at 1216 SE 3rd Ave. Apt. 7.
What are you looking at?
She works at the market.

While we consider the second sentence it say's he know about the charges before itself. So "in hotel" is incorrect, if he is not known about the charges then we can use "in hotel" but we need to change the second and third sentence as,

[B] if the boarding and lodging charges.

[C] are exorbitant.

But also we say, I live in an apartment and that is correct.

In my opinion B should be wrong because "the boarding and lodging" is singular and should be followed by charge was very high.

Since there cannot be error in two sentences. Therefore it should be "The boarding and The lodging charges".

Grammatical mistakes are not problem when we will attend the interview but we have to speak fluently so please try to improve English speaking skills. Write or wrong that is not the problem they will observe only our fluent and soft skills this is my suggestion only. Thank you.