شرکت در آزمون آنلاین زبان انگلیسی 1 - زبان انگلیسی 1 | آزمون شماره 9261

Ali Daei , the Iranian football player, is both .......................... and popular among many people . He is well-known to many people

Are you …… that tigers can climb the trees?

I have been to a lot of places, but I am sure that Japan is … I have ever been to.

One of the main concerns in research principles is to keep the identity of the participants secret during data … and reporting process.

Which sentence is grammatically CORRECT?