'In, on, at' (time) exercise. Prepositions of time 'in, on, at' fill in the blanks quiz. English grammar tests.
In English, the prepositions "in", "on" and "at" are commonly used prepositions to indicate time. However, the use of each depends on different situations. The questions are designed to understand the occasions where 'in, on, at' are used. You can click on the link for the explanation of the subject.