1.1. Go away!
1.2. Take yourself away!
Try, remove yourself. Note, I can't stand, or can't bear, not won't stand. Try, won't stand for your + gerund.
2.1. I am at a loss how to remove that stain of yours.
2.2. I am at a loss how to take out that stain of yours.
3.1. They will admit only three lodgers this term.
3.2. They will take in only three lodgers this term.
Note, however, take in means to give free lodging. Try, take on its own.
4.1. His speech must be written down in shorthand.
4.2. His speech must be taken down in shorthand.
5.1. I was surprised when I saw her alone in the restaurant.
5.2. I was taken aback when I saw her alone in the restaurant.
Note, taken aback means to be shocked. It's a little different from surprised.
6.1. I am deeply concerned about his fate.
6.2. I take a deep interest in his fate.
Note, the first one expresses worry, the second one doesn't unless modified to mean so. The difference is in concerned vs interested.
Student or Learner