shape up
shape up {v. phr.}, {informal}
1. To begin to act or work right; get along satisfactorily.
If the new boy doesn't begin to shape up soon, he'll have to leave school.
"How is the building of the new gym coming along?" "Fine. It's shaping up very well."
2. To show promise.
Plans for our picnic are shaping up very well.
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Source: A Dictionary of American Idioms