Mr. and Mrs. Rao stay <u>in their home</u> every evening.
- (a)at home
- (b)inside home
- (c)within their home
- (d)No improvement
Correct — A, at home. Staying in of an evening is expressed by the fixed adverbial 'at home', which takes no article and no possessive — 'Mr. and Mrs. Rao stay at home every evening.'
- (b)inside home — 'Inside' needs a determiner before 'home', and even then it describes a physical position rather than the habit of not going out.
- (c)within their home — 'Within' marks a boundary and belongs to formal or legal writing; it is far too heavy for a sentence about an evening routine.
- (d)No improvement — 'In their home' points at the building itself, whereas the sentence is about the couple staying in rather than going out, and English uses the bare idiom 'at home' for that.
A zero-article idiom item — a small set of everyday place expressions drop the article after their usual preposition.
'In their home' is not broken English, which is why the option tempts. Improvement items ask for the form English actually uses, and for the habit of not going out that form is 'stay at home'.
- The same pattern appears in 'at school', 'in hospital', 'at work', 'in bed' and 'to church'.
- 'Home' also works as an adverb, so 'go home' and 'reach home' take no preposition at all.
- Adding a possessive to a fixed adverbial phrase.
Asked as a sentence-improvement item that replaces a fixed adverbial with a wordier phrase that is grammatical but unidiomatic.
He had arrived at Cairo (a) a few months before (b) protests shook the Arab world (c). No error (d)
- (a) He had arrived at Cairo
- (b) a few months before
- (c) protests shook the Arab world
- (d) No error
Answer(a) He had arrived at Cairo
Same concept — the preposition English fixes to a particular place word. That NDA item turns on 'arrived in Cairo' rather than 'arrived at Cairo' for a large city; this one turns on 'stay at home' rather than 'stay in their home'.
- practice — not a real PYQ
Which option best improves the underlined part — My brother goes to <u>the bed</u> at ten every night.
- (a)bed
- (b)a bed
- (c)beds
- (d)No improvement
Answer(a) bed — 'go to bed' takes no article.
- practice — not a real PYQ
Which option best improves the underlined part — She reached <u>to home</u> before sunset.
- (a)home
- (b)at home
- (c)in home
- (d)No improvement
Answer(a) home — 'reach home' needs no preposition.