Ответ:

  1. The branch has come of the tree. (to be separated from another thing)

  2. Why don\’t you come over and see us in the evening? (to come to someone\’s house)

  3. What has come up to you? (to appear).

  4. Outside the restaurant we came across a man doing a fire-eating performance. (to meet accidentally)

  5. Jane has come down with a bad cold. (to fell ill)

  6. I come across this old photograph in the back of the drawer. (to find accidentally)

  7. The rider came down the horse. (to fall)