آزمون آنلاین زبان انگلیسی 1 - درس 3 | آزمون شماره 6240

A: As I know your mother is old and sick and lives alone, too. I wonder who does shopping for her. B: Nobody, she does it ……… .

Alexander Graham Bell invented the telephone ……… .

There is a warning to stay away from the machinary while it ............................. .