شرکت در آزمون آنلاین زبان انگلیسی 1 - زبان انگلیسی 1 | آزمون شماره 12570

Babak has .……… the seminar on leadership in Long Beach recently.

… is an expensive instrument for viewing very small objects like blood cells or microbes.

 I don’t know what happened. Suddenly the . . . of her voice changed into a low one.