He is taller than any other boys in his class He is the tallest boy in his class He is the tallest of all the boys in his class He is taller than the other boys in his class No boy is taller than him in his class(这一条不太准) 够了吗?
He is the tallest boy in our class. He is taller than any other boy in our class. No other boy is taller than him in our class. He is taller than the other boys in our class. In our class, his height is more than anyone else's.