(1) Before he started out / (2) he had collected all the / (3) informations about the country / (4) he was going to visit.
Explanation : Information is a collective noun which means items of knowledge. Collective nouns do not take a plural form. Hence, informations is incorrect.
(1) The first lesson I got / (2) in my military days was that / (3) one should love his country / (4) better than anything else.
Explanation : 'One' should be followed by one or one's only and not by 'his' "...........one should love one's country.........."
(1) I ordered for a cup of tea / (2) but the bearer / (3) brought it only / (4) at the end of the tea-session.
Explanation : 'Ordered' means 'called for', therefore, 'ordered for' is not correct. No preposition is required after 'ordered'.
(1) Hardly I have finished reading / (2) when my sister / (3) snatched the book / (4) from me.
Explanation : Hardly had I finished reading when........Correct correlative conjunction.
(1) Hardly had / (2) I left the school / (3) than it began / (4) to rain.
Explanation : Hardly........when. Correlative Conjunction.
(1) Her ability to / (2) talk to strangers / (3) is one of her / (4) stronger points.
Explanation : .........One of her strong points
Or
........one of her strongest points. Both the forms are acceptable. 'Stronger' is used when we are comparing two things.
(1) I had worked / (2) in this / (3) school for / (4) 25 years.
Explanation : I worked.........(Simple past)
Or
I have worked (Simple perfect)......Both are correct.
(1) When she / (2) is finishes her studies, / (3) she wants / (4) to become a journalist.
Explanation : "finishes her studies" ('Is' is not required).
(1) There were two childhood buddies /' (2) who went through school and college / (3) and would even join / (4) the army together.
Explanation :
(1) One day, a baker / (2) decided to weighed the / (3) butter to see if he was getting a kilogram/ (4) and found that he was not.
Explanation : "decided to weigh the butter"
(1) I went to the Principal / (2) because I wanted / (3) to know as to why / (4) I was detained.
Explanation : 'because' and 'as' serve the same purpose. Therefore, both these words need not be there. ".........because I wanted to know why I......"
(1) I have been living here / (2) since four years / (3) but no one has / (4) noticed my presence so far.
Explanation : .........for four years........ 'for' indicates duration. 'Since' indicates point of time.
(1) No sooner did the train start / (2) when there was / (3) a great rush / (4) into my compartment.
Explanation : 'No sooner' is followed by 'than' and not 'when'.
(1) My brother-in-law / (2) along with his daughter / (3) were present / (4) at the function.
Explanation : My brother-in-law along with his daughter was present........., When two subjects are connected with "as well as" , 'with', 'in addition to', the verb agrees with the first subject.
(1) After you will return / (2) from America / (3) I will come / (4) and see you.
Explanation : After you return......... .
(1) Relationships are built / (2) in kindness, understanding and self sacrifice / (3) not on jealousy, selfishness, puffed up egos and / (4) rude behaviour.
Explanation : "on kindness, understanding and self sacrifice"
(1) Excellent has not been luck; / (2) it is the result / (3) of a lot of / (4) hard work and practice.
Explanation : "Excellence is not luck".
(1) Not all medicine / (2) is sweet, / (3) not all surgery is painless / (4) but we have to be taking it.
Explanation : "but we have to take it"
(1) A knowledge / (2) of Sanskrit / (3) may be helpful / (4) to chant slokas.
Explanation : The idea in this sentence is that a knowledge of Sanskrit can help someone 'in doing' something. Hence in chanting slokas is the correction.
(1) The presentation of awards / (2) was being put off / (3) due to the disturbances / (4) in the city.
Explanation : The continuous tense ‘was being’ is not warranted in this sentence because it does not denote a continuous action. The simple past 'was' is adequate.
(1) I need the passport / (2) as I had to submit / (3) a copy of it / (4) for my study abroad.
Explanation : Need is a present tense verb. Hence if had is used with it, the rule of parallelism is flouted. ‘Have’ is the correction.
(1) The new teacher / (2) told the principal that / (3) the behaviour of the class / (4) were highly objectionable.
Explanation : behaviour is an abstract noun, singular subject and it should be followed by singular verb.
Although Japan's economy is still the worlds' second largest, / (2) outsiders pay little attention to it / (3) since the country contributes / (4) so little to global growth.
Explanation : The apostrophe in worlds' should be placed before the ‘s’ since there is only one world.