Question

Fill in the blank with the most appropriate word-
The party will start _______ Sunday.
a) On 9o’clock at
b) At 9o’clock on
c) At 9o'clock in
d) 9o’clock

Answer 1

Hint: Read the given sentence carefully, we have to find out the correct preposition to be filled in. Prepositions a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause.

Complete answer:
 In the given question, we have to choose two prepositions to be filled in the given blank correctly. The first preposition will focus on the given time, that is ‘9 o'clock', whereas the second preposition will focus on ‘Sunday’. We have to choose the correct option from the four given options.
Now, let us examine all the given options to find out the correct option:
Option ‘a’ is On 9 o'clock at. ‘On’ is used for – physically in contact with and supported by (a surface). ‘At' is a preposition – expressing location in a particular place or position. It is an incorrect option.
Option ‘b’ is At 9 o'clock on. It has the same explanation as the above option, but this is the correct answer as we can use ‘at’ for time, and not day. And, we can use ‘on’ for day and not time.
Option ‘c’ is At 9 o’clock in. It is an incorrect option as we cannot use ‘in’ before ‘Sunday'. In is a preposition – expressing the situation of something that is or appears to be enclosed or surrounded by something else.
Option ‘d’ is 9o’clock. It has no prepositions and is an incorrect option. Hence, option ‘b’ is the correct option.

Note:
All the other options are plausible distractions. Prepositions and postpositions, together called adpositions, are a class of words used to express spatial or temporal relations or mark various semantic roles.