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

Câu hỏi liên quan

• Choose the correct answer to complete the sentence. "The lottery winner was willing to spend a considerable sum of money to give ____ to charity to help those in need."

• Last night, when I was reading, I heard the door to open and saw shadow move across the floor.

• The Vermont Elememary Science Project, according to its founders, are designed to challenge some of the most widely held believes about teaching 

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• Before she moved to California, with its much milder climate, Betty found that health improved considerably.

• The signi of the peace treaty was an event of major importance.

• The student _    the highest score will have the opportunity to study abroad.

• When Cliff was sick with the flu, his mother made him to eat chicken soup and rest in 

• Million of people lost their jobs in the 90’s. This, in turn, caused social dissatisfaction with the politic leaders who had promised jo and prosperity

• Peter: “Ann is in hospital.” Mary: “Yes, I know. ______ her tomorrow.” 

• Mark the letter A, B, C, or D to indicate the word(s) closest in meaning to the underlined word(s)in each of the following questions. The balance and harmonious blending of various elements contribute to Taj Mahal's unique beauty.

• Choose the letter A, B, C or D to complete the sentences. " I’d rather you didn’t take a noise last night; I ______get to sleep."

• Under any circumstan will late arrivals be admitted to the theatre before the interval.

• By studying the fossils of pollen, which extremely resistant to decay, researchers can gain useful information about the vegetation of past.

• Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions: 

  The three-year-old boy has a cycle with three wheels. 

   

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

• After a while , the track we have been following became thick underg

• Vitamin E, which is found in nutritious foods such as green veget and whole grains, action as an antioxidant in cell membranes.

• The manager was suspicious ..............   the shop assistant.

• Tea did not become popular in Europe until the mid 17th century when it been first imported to England and Holland.

• Deciduous trees are ones that lose its eaves in the autumn and grow new ones in the spring.