Change the following sentences from the going to construction to the present continuous form of the future. 1. john is going to buy a car. 2. we are going to visit africa this summer. 3. they are going to build a new bridge across the river. 4. are you going to sell your house? 5. he's going to finish his book this year. 6. i am going to have a bath. 7. the children are going to start tennis next year