Multiple choice Directions: Choose the incorrect sentence. Mohan is working on a plan. Mohan worked out a plan. Mohan was working out at a plan. Reveal answer Fill a bubble to check yourself C Correct answer Explanation The first two options are correct. Option 1 means ‘Mohan is pursuing a plan’, option 2 means ‘Mohan developed a plan’. Option 3 is wrong as preposition ‘at’ does not fit here.