شرکت در آزمون آنلاین
زبان انگلیسی 1
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زبان انگلیسی 1
| آزمون شماره 10847
The underlined word “they” refers to … .
These days people want to write and … about bad and negative news as there is few interesting ones.
One of the main concerns in research principles is to keep the identity of the participants secret during data … and reporting process.