آزمون آنلاین انگلیسی 3 - درس سوم | آزمون شماره 597

It is well known in ......... theory that reaction rates increase rapidly with increases in temperature.

It is important to spend a lot of money on children’s education, ......... that is more important is that they ......... to behave properly.

.There are approximately ۱۳,۰۰۰ identifiable ..........................  of roses throughout the world