شرکت در آزمون آنلاین زبان انگلیسی 1 - درس 3 | آزمون شماره 371

He is amazed I managed to move those boxes all by ……… .

Alexander Graham Bell invented the telephone ……… .

In the blowing wind we couldn’t keep the light on because of broken glass ……… of the torch.

Some publications limit their books just on a special subject and ......................  .

. Chinese scientists are applying their ..................................... , skill and modern technical equipment against nature in an effort to get more oil for their country