Choose the suitable Preposition to fill in the blank in the given sentence:
It is ten o'clock _____ my watch.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → by
Complete sentence: It is ten o'clock by my watch. "It is ten o'clock by my watch" means that this is the time my watch shows.
| Option | Used to show | Example |
|---|---|---|
| (1) by (answer) | By can mean according to, especially with a clock, watch or rule. | It is already noon by the station clock. |
| (2) in | a position inside something or a period of time (in May). "Ten o'clock in my watch" is not used. | The keys are in the drawer. |
| (3) on | a position on a surface or a day (on Monday). "On my watch" is an idiom meaning while I am in charge, which does not fit a statement of the time. | The book is on the table. |
| (4) for | purpose or a length of time (for an hour). It cannot mean "according to". | We waited for two hours. |