Student or Learner
1) I have been using this laptop for a few months so is too soon to tell if it is a good laptop. Most of the time, laptop's problem will only occur after a year.
2) He could turn a unprofitable business into a profitable business.
3) She could use that as a good publicity for herself.
2) He could turn his unprofitable business into Profitable business.
3) she could that for her better publicity