شرکت در آزمون آنلاین زبان انگلیسی 2 - درس سوم | آزمون شماره 6115

The serial killer had left the country, changed his name, and assumed a new .......... in order to avoid being caught by the police.

There are useful chemical ……… that are made from tobacco, including those which kill most insects.

Allen is ……… his present job.

By changing the way of presenting classes at school people and students' ............................... have also changed.