11.  Time management has been the big thing, and now I know how to plan my time.

12.  Dating can interrupt their studies if students do not know how to plan their time well.

13.  Do you plan your time carefully, treating your minutes and hours as the precious resources they are?

14.  Tentative plans for a visit to Mongolia have been scrapped because of lack of planning time, officials said.

15.  Tentative plans for her to visit Mongolia as well during her trip to Asia have been scrapped because of lack of planning time, officials said.