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  • I usually ....... work at about 4 o'clock and run to the station to catch the train to my next job.
Question 1:
I usually ....... work at about 4 o'clock and run to the station to catch the train to my next job.
A. knock on
B. knock off
C. knock up
D. knock out

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Phrasal idioms with the verb 'knock' | B2 – Upper-Intermediate