counterfeit banknote/bill/note

to doubt / to have doubts / to be doubtful / to distrust, to mistrust / to call (a matter) into question

to use / to employ / to make use of, to apply / to spend

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

Short for 警察署 (keisatsusho, “police station”). / police

(idiomatic) to doubt what one just heard; hearing something surprising

to use one's head

use one thing for many purposes / work someone hard