Everyone is supposed_____a seat belt in the car.

Once natural resources _____ , the consequence will beunimaginable.

Shanghai and Nanjing are among the most importantcities in China __________ their size and population

To our disappointment, the trip we hadbeen looking forward to_____in theheavy rain.[ ]

Since we ____ for almost two weeks, I’ll need to buy a large backpack in advance to carry my supplies of food and water.