شرکت در آزمون آنلاین انگلیسی 3 - درس سوم | آزمون شماره 58

It is well known in ......... theory that reaction rates increase rapidly with increases in temperature.

Scientists have found the relationship between lung cancer and the .................................... effects of smoking.

First , you should ............................ the placement test ; you should ............................. on your English knowledge.

The nation's fuel ........................ will not last forever . Using renewable energies is essential.

A good .................................... believes in the policy for treating people fairly.