____, please paint the windows before you leave. 

My brother shouldn't do that,  _    ?

Choose the best option:

During a long drought, farmers had to find ways to ____ their crops.

Agronomists study crop disease, selective breeding, crop rotation, and climatic factors, as well soil content and erosion.

Urban consumers have formed co-operatives to provide themselves with necessities such groceries, Household appliances, and gasoline at a lower cost.

Gold, silver, and copper coins are often alloyed whit harder metals to make them hard as enough to withstand wear.

Even the most discriminating gourmet will agree that food in the south is as good as any other regions in the country

If it is kept dry, a seed can still sprout up to forty years after their formation

Although there are more than 2,000 different variety of candy, many of them are made from a basis boiled mixture of sugar, water, and corn syrup

Stars in our universe vary in temperature, colour, bright, size, and mass

From 1905 to 1920, American novelist Edith Wharton was at the height of her writing career, publishing of her three most famous novels.

A traveler can reach some of the village along the Amazon only by riverboat.

Every student  must make up their own study list of the classes he is going to take at the beginning of the quarter 

Few people realize that the musician of the national anthem of the United States originally belonged to the British drinking song.

Many poets enhance their work by creating a contrast among realism and symbolism in a given poem

The diameter of the Sun is more than one hundred times greater than the Earth.

Mercury is not often visible because it is so near the sun to be seen.

Humus is formed during soil microorganisms decompose animal and plant material into usable elements by plants 

My parents lent me the money. Otherwise, I ____ this shop. 

Since the Great Depression of the 1930’s, social programs such as Social Security have been built into the economy to help avert severity business declines

Zoos in New Orleans, San Diego, Detroit, and the Bronx have become biological parks where animals roams free and people watch from across a moat.