شرکت در آزمون آنلاین زبان انگلیسی 1 - درس 3 | آزمون شماره 5263

1-

I hope this book will be of ....................... to both teachers and students.

2-

.Mental attitude plays a far more important role in a person's .................................  or failure than mental capacity

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5-

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.