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

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• Choose the best option:

  Scientists ____ on the site found many ancient tools, tombs and pottery, and made some important archaeological discoveries.

• The most substanc expand in volume when they are heated.

• With cable broadband, you can go from one page to another much quickly than you can. With a dial-up modem or DSL, and you can load web pages more read

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• Interestingly (  United States both produces or  uses more crude oil than ny other nations.

• The first vaccine ever developed was used to combat and fight a smallpox, a disease resulting of infection by a virus

• When scientists discovered how soap works, it became possible to do synthetic deterg out of Petroleum

• There is the very realpossibility that these animals could pani, frighten and would break away, should there a sudden loud noise.

• People who exercise regularly are less likely develop heart disease than is those who do not keep fit.

• Nuclear powers product in the us is controlled by the Nuclear Regulat Commission [NRC]

• Choose the correct answer to each of the following questions. "In addition to exploring the caves and grottos, and seeing its______, visitors can also enjoy mountain climbing."

• Who would have won the World War II if the nuclear bomb _____ by the Nazus first? 

• It’s time you went  home, but I’d rather you stay here.

• Philosophy, the inquiry into the nature of human knowledge, it i a very popular subject among university students

• Anyone interested in the use of computers can learn much if you have access to personal computer.

• Nowhere he could find good place to study, so he returned to his dorm

• Choose the best option:

  You may choose one from the five World Heritage Sites in Viet Nam ____ in this leaflet to visit on your next field trip.

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

• Choose the letter A, B, C or D to complete the sentences. "__________ you like to see my postcards collection?"

• Alike other forms of energy, natural gas may be used to heat ome, cook food, and even run automobiles.

• When scientists discovered how soap works, it became possible to do synthetic deter out of Petroleum.