The phrase 'enthusiastic boy' is correct and usable in written English.
You can use it when describing a boy who is eager and willing to do something with great excitement. For example, "The enthusiastic boy leapt out of bed early that morning, ready to start his day."
"After 'Here We Are in Paradise' came out, I got sick, and stayed sick for a couple of years," said Mr. Earley, who speaks quietly and carefully, and with the occasional running jump of an enthusiastic boy.
The Queen became an unexpected subject for a selfie as an enthusiastic boy managed to grab a photo with the Queen in the background as she passed by.
Sohn has even inspired a Pixar character — Russell, the enthusiastic boy wilderness explorer in the movie "Up".
Now, the once enthusiastic boy has now become very shy.
"I needed to come up with a plan that gave us energy in midfield," said Sir Alex. "The da Silvas are such keen and enthusiastic boys, I felt they could do it".
Better than he was an enthusiastic kitchen boy who would sometimes borrow my equipment and come back two hours later in triumph with a bagful of seething invertebrate life and several additional items.
However, because of my cultural background, I was not scandalized by the awkward "pressao" (what some call twerking) into a split, attempts of this enthusiastic Brazlian boy in the video that is sparking all this uproar.
A band of enthusiastic small boys had gathered in front of us, each armed with a long plastic trumpet into which, for the duration of the match, at any opportunity, they blew raspberries.
We were greeted by village leaders offering fresh flower garland necklaces while a joyous collection of enthusiastic, young boys beat drums and tins of all sizes in the background.
He was as enthusiastic as a boy, and when he displayed the original manuscript of Milton's his naturally sunny disposition came to the fore.
"Tim was a student here for two years and we came to know him as an open, enthusiastic and studious boy who loved to show that he wanted to be history teacher.
