آزمون آنلاین زبان انگلیسی 1 - درس 3 | آزمون شماره 8978

You need to help the kid ......... confidence in his abilities, then he would certainly improve in his schoolwork.

Tom's professor explained the difference between science and .................... , the first one is what researchers are currently working on and the second one is what human has already found out about the world.