Once 　　 a time, there was a monkey called Sun Wukong.

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at a time at one time at the time at the same time

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at once time at a time in once time in no time

one time the year once a year one time in a year once in a year

At a time At one time At times At the time

very often in a time once upon a time once in a while

Each at one time One by one time One for each time One at a time

one time the year once a year one time in a year once in a year

once and for all once upon a time once in a while all at once

at once time at a time in once time in no time

How long; One time How soon; Once How often; Once time How often; Once

one time the year once a year one time in a year once in a year

Each at one time One by one time One for each time One at a time

once or twice one time or two time once time or twice once or two time

at a time once at once once in a while