1.John has a lot of chores to do at/in/to home. 2. Jim wants to be good on/at/in maths. 3.John was not fond in/at/of maths in primary. school 4. Jim knows that English is important for /in/on life . 5. Jim has Pe at/in/on Monday and Thursday. 6.Jonh worked a lot on/of/in summer
