Điền từ thích hợp vào ô trống

17 18 và 20 nhá mn
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16
. The teacher encouraged us
more essays at home.
17.
an amazing personal experience.
18. The customer demanded
around the world must be
the shop manager at once.
19. I regret
position you applied for has been filled.
20. My parents didn't allow me
to the concert with my friends because I
to inform
you that the