Question

Fill in the blanks with suitable prepositions:
She’s genius ________ telling the wrong things ________ the wrong time.
a. On/at
b. For/on
c. At/at
d. At/on

Answer 1

Hint: The word ‘preposition’ is made up of two words, ‘pre’ and ‘position’. ‘Pre’ means ‘before’. Therefore, the position of a preposition is before a noun or a verb. Prepositions join two or more sentences together.

Complete answer:
People are usually ‘good at something’. In the given sentence, ‘genius’ means being extremely good at something.
To refer to a certain unspecified time period, the preposition ‘at’ is used. The preposition ‘on’ may be used before ‘time’ only when it is to be said that someone did something exactly at that point in time. For instance, ‘She reached school on time’. This means she reached school exactly when her classes were about to start (for example, if her school starts at 8 A.M., she reached exactly at 8 A.M.). However, in the given sentence, the time mentioned is a period of time as well as unspecified.
Therefore, the sentence will read as ‘She’s genius at telling the wrong things at the wrong time’.
Thus, option c is the correct answer.
Option a is wrong because people cannot be good at something. Though the second part of the option is correct, the option cannot be selected as the right answer.
Option b is wrong because both ‘genius for’ as well as ‘on the wrong time’ is grammatically incorrect.
Option d is incorrect because the second preposition ‘on’ cannot be used with ‘the wrong time’.

Note: An option can be marked as correct only if both the parts of the option are correct. Also, prepositions should be used keeping in mind the context of the sentence. For example, ‘at the table’ is a correct usage of preposition but if it is used in a sentence such as ‘The cat sat at the table’, it is wrong. Only human beings can sit at the table. A cat can sit on the table.