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شرکت در آزمون آنلاین انگلیسی 3 - درس سوم | آزمون شماره 724

1-

Sound levels below about 40 decibels are not very useful in music because to be useful, such sound levels ....... that background noise, such as audience movement or ventilating systems, be even lower-and that often is not the case.

2-

I'm not in a good mood after tasting the chinese food, becuase of my friend's .................................... .

3- Susan made a serious mistake while she was solving the complicated chemistry problem as she didn’t figure out how to ......... chemical units.

4-

As a way to escape from the police , the driver tried to .............................. into the opposite driving lane.

5-

As of 2020, there are over 10,000 pieces of scientific equipment ....... around the Earth.

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