المشاركة الأصلية كتبت بواسطة galaxyy (المشاركة 1576403) الحل هو on ان شاء الله لان work on تعنى do something or research into something

to work on something means toimprove or repair it
Ali is still working on (repair) the car.
he needs to work on(improve) his handwriting.

work something in try to include something.
get worked up gradually come into a state of intense excitement, anger, or anxiety. have one’s work cut out be faced with a hard or lengthy task. in the works being planned, worked on, or produced. work in try to include (something). work off reduce or eliminate by activity. work on/upon exert influence on. work out 1 solve or be capable of being solved. 2 develop in a good or specified way. 3 plan in detail. 4 understand the character of. 5 engage in vigorous physical exercise. work out at be calculated at. work over informal beat up. work one’s passage pay for one’s journey on a ship with work instead of money. work to rule chiefly Brit. follow official working rules and hours exactly in order to reduce output and efficiency, as a form of industrial action. work up to proceed gradually towards (something more advanced). work up develop or improve (something) gradually. — DERIVATIVES workless adjective.

المشاركة الأصلية كتبت بواسطة mr. Hamdy (المشاركة 1576384) ارجوا حل المثال مع التوضيح 1- ahmed worked ………………… his project all day. a) out b) against c) up d) on