شرکت در آزمون آنلاین انگلیسی 3 - درس سوم | آزمون شماره 407

1-

..................................... energy sources such as hydropower , wind or water operate differently to generate electricity.

2-

. As she passed the restaurant her stomach rumbled, as if to  .............................. her she hadn't eaten since lunchtime

3-

After many searches in the Internat we found out that there was no ............................... that proves people and governments are hurrying to solve air pollution .

4-

During my presentation , I'm going to cite the ............................................. of the people who invented the microchip.

5-

The research study didin't have a scientific ................................ , but also included religious topics.