First rinse and shred the cabbage and french beans.

Peel and grate the carrots. chop the onions, ginger and garlic.

Heat 1 tbsp Olive oil in a pan Add finely chopped onion, ginger and garlic. Stir and saute on a medium flame for 2 minutes.

Then add the finely chopped french beans, stir fry on a medium to high flame.Add carrots, cabbage and celery.

Meanwhile make a paste of corn starch and water. keep aside.
Stir fry these veggies on a high flame for 2 to 3 minutes.

Add water or veg stock. Cook well. Add soy sauce and stir. Then season with salt. Bring the soup to a simmer on medium flame.

Mix the corn starch paste and add it to the soup. Stir again very well. Allow the soup to thicken on a low to medium flame.

When the soup has thickened, add black pepper, vinegar and sugar.
Give a final stir. switch off the flame.
I garnished the veg hot and sour soup with butter.
Thanks

Note:
keep a check on the amount of salt as soy sauce already has a lot of salt. I added just about one-fourth teaspoon first and adjusted towards the end.