6. As there is less and less coal and oil, scientists are exploring new ways of making use of energy, such as sunlight, wind and water for power and fuel.
The Grand Theatre is located on one corner of ________ is called the People’s Square.
Something ________ wrong with the car, and it ________ not start.
—It's wrong for a student to follow ________ his teachers say. —It’s true. I can’t agree ________ .
Dad is used to smoking and drinking. There’s no chance ________ I'm able to talk him into ________.
________ the plan has been made, let’s get down to ________ it out.