Collocations for assignment - noun

special | important | dangerous, difficult, tough | business, work | modelling, photographic

accept, take on
Why did you take on this assignment if you''re so busy?

carry out | refuse
If you refuse this assignment you risk losing your job.

complete, finish | give sb

on ~
The photographer is on assignment in China at the moment.

practical, reading, written

give, hand out, set
The teacher set an assignment on pollution.

do | complete, finish | hand in
The students handed in their assignments.

~ on
an assignment on Roman history