684-129/х=254

change the following sentences from Present Indefinite Tense to the Present Continuous Tense.Add a word or phrase like nontinuous Tense.Add a word or phrase like now, today, at this moment, at present to each sentence.
1.I write a letter. 2.Richard walks to school. 3.We live in that house. 4.My father works in his garden. 5. The book lies on the table.6. The train stops at the station. 7.We travel to London.8.The gardener cuts down a tree. 9.John comes home.10.The shopkeeper ties up the parcel.