شرکت در آزمون آنلاین انگلیسی 3 - درس دوم | آزمون شماره 7758

1- Jack put the bullet under a microscope, ......... it 1000 times and going over the surface nanometer by nanometer.

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The store ..................... the new phone was being sold had a huge line of people outside it.

3-

Peter is a bilingual , ........................ was promoted to the manager level , because he can communicate with more people.

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.   Young scientist is working at an astrophysical observatory doing research into the .................. of the universe   
  

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