Question

she seldom keeps dash her promise
fill with preposition
​

Answer 1

Answer: up

Explanation:

Answer 2

She seldom keeps up her promise.

Up:

Up can be used as a preposition, an adverb or an adjective.

It os used in the following contexts:

• towards a higher altitude
• adjusting towards an erect position
• travelling to the north of a region or country
• moving closeby to someone or something and then halting
• along a river or road or any path
• increasing in amounts
• awake and out of a bed
• used to convey that a period of time has elapsed
• divided up into small or equal parts
• completely finished or used leaving nothing behind