شرکت در آزمون آنلاین انگلیسی 3 - انگلیسی 3 | آزمون شماره 11152

Scientists .............................. moon base with oxygen by extracting oxygen from some rocks on the moon .

 .................................... He has shown tireless commitment and dedication to saving lives and for that we are very

You can make a/an............................... to pay off the bill and your present consumption, by regular payments to the fuel supplier .

The underlined word “circulating” in the last paragraph is closest in meaning to ….