1 Complete the sentence with the past simple form of the verb in brackets.
a Aztec civilization (develop) b The Aztecs (leave) left developed in the Valley of Mexico, 7,500 feet above sea level. their own land of Artlan at some time during the 12th or 13th century.
They (believe) for a new land. belived that Huitzilopochtli their war god (want) wanted them to search
d. They (arrive) arrived They (bulld) built In the Valley of Mexico during the 12th or 13th century AD. their capital city, Tenochtitlan, on an island in Lake Texcoco.
1 They (plant) planted trees on the island to make the land better, (work) hard and
(improve) improved the land.
6 Complete the text with the past simple affirmative, negative or question forms of the verbs in brackets.
Louis Pasteur 1822-1895
As a young man, Pasteur a he b (become) became studied at the École Normale in Paris. Then at the age of juu 32, a prolessor at the University of Lille. In 1856, Pasteur e (receive) received a visit from a man called Bigo who d (own) e (make) made alcohol from sugar beet. He f (have) Pasteur: why g (the alcohol/turn/to acid?) h (happen) happened threw owned had does the alcohol turn to acid they I (not can) it away: Bigo k (ask) asked couldn’t a factory that a question for ? When this use it and (throw) Pasteur to find out the reason for this.
At first, Pasteur 1 (not know) didn’t knew but when he m (examine)
tested the alcohol under a microscope, he n (find) found
thousands of tiny micro-organisms. He o (believe) p (cause) caused believed that they the problem. q (milk, wine and vinegar/behave/ in the same way?) Does milk, wine and vinegar behave in the same way Other scientists r (disagree) disagreed s (make) made with him, and newspapers lun of him. However, Pasteur t (continue) continued with his work, he u (invent) methods of resung his theory and v (prove) that he was right. Later he w (work) doctors and x (develop) invented proved worked together with two developed vaccines for diseases such as
anthrax and rabies.
Ամիրյան Գրիգոր 