Flour is the primary ingredient of any bread recipe. It is the bread that we see. Flour contains gluten, a protein that provides for the elasticity, and the basic structure of bread. As the mixture is heated, the starch in bread sets, and adds to the structure.
If you are a U.S. permanent or conditional resident -- that is, someone with a green card -- the basic rule is that you cannot apply for U.S. citizenship (or apply to naturalize) until you have lived in the United States as a lawful permanent resident for at least five years.
It is called a conditional green card (the condition is you married a US citizen) After 2 yrs you can apply to have the conditions removed. This next green card is unconditional and is good for 10 yrs. After you have had your green card a total of 2 yrs 9 months you can apply to become a US citizen.