Quiz: fill in the blank:

How ___ you?

has, am, have, was, does, are, do, be, is

• Aeronomy is the study of the Earth's upper atmosphere, which includes their composition, temperature, density and chemical reactions.
• Agricultural scientists at the University of California have recently made a number of discoveries that could help themselves receive upcoming governmental grants.
• Anthropologists assert that many of the early Native Americans who lived on the Plains did not engage in planting crops but hunt, living primarily on buffalo meat.
• Daily ingestion of large quantities of Vitamin E might help people substantially lengthen the lives.
• Throughout the 1960s, Martin Luther King fought nonviolently for African-American right and for justice for all Americans.
• Where does a river intersects another river, a city usually is formed.
• Medical doctors should continuously to read medical literature so they keep abreast of medical developments.
• Reptiles must always to avoid extremes of temperature if they are to maintain appropriate body heat.
• Before she died, Andrew Jackson's daughter, who lives in the family mansion, used to take tourists through her home.
• In an effort of expand their educational mission, TV networks are trying to have more programs for children.
• The purpose of the United Nations, broad speaking, is to maintain peace and security and to encourage respect for human rights.
• It's essential that the temperature is not elevated to a point where the substance formed may become unstable and decompose into its constituent elements.
• How many dinosaurs initially survived the asteroid impact with the Earth, which ultimately cause the extinction of the species, is still open to question.
• An orangutan is similar to a human because has a nearly identical DNA pattern.
• Of all the cereals, rice is the one that providing food for more people than any of the other grain crops.
• To generate income, magazine publishers must decide whether to increase the subscription price or selling advertising.
• A number of sleeping pills are accompanied by such side effects as amnesia and irritable.
• Many international corporations have exploited the natural resources of countries in third world.
• The neutron bomb provides the capable of a limited nuclear war in which buildings would be preserved, but people would be destroyed.
• Even if a member has drank too much the night before, the counselors of Alcoholic Anonymous will try to convince him or her to sober up and stop drinking again.