شرکت در آزمون آنلاین زبان انگلیسی 2 - درس دوم | آزمون شماره 5289

According to the researches that have been recently conducted by scientists in the field of medicine, exercise can reduce the chance of heart disease. That's why I always tell my grandfather that ....................................... three times a week.

 ................................ If you keep asking question after question, you are behaving 

. Passengers should tell the airline in advance if they have any .......................... nutritional needs

As you know , in the new century, space travel is one of the wonders of modern  ........................................    .