Part-I Secondary and Senior Secondary Standard: Grammar and Usage MCQ - Practice Questions with Answers

The sentence refers to a real possibility in the future. Standard first conditional form is if plus present simple in the conditional clause and will plus base verb in the main clause. Therefore, 'If the invigilator rings the bell, the candidates will stop writing' is the grammatically appropriate choice.

The target is a complex sentence, so one clause must be dependent on the other. In option A, "When the invigilator warned the candidates" is a subordinate adverbial clause attached to the main clause "they stopped talking". The other choices keep both clauses independent.

'College' is a noun functioning attributively because it stands before 'library' to classify the kind of library. English often uses nouns in modifier position, but the word remains noun-like in form rather than becoming a typical adjective.

'Information' is normally treated as an uncountable noun in English. A determiner such as 'some' can indicate an indefinite amount, while plural-count forms like 'a few' are unsuitable.

With a past reporting verb such as 'said', an original present continuous statement is normally backshifted to past continuous in reported speech. Thus 'are revising' becomes 'were revising' unless the speaker deliberately stresses current truth.