Amazing improve

My nephew, Ollie, improves his speaking and listening abilities a lot since we approached Mr. Clint.
Still remember the first time Ollie met Mr. Clint, he was so shy and kept asking us how to answer the question. And now, after only 10 classes, he became a smart boy who teaches his mom lots of vocabularies he's learnt form Mr. Clint.
One day, Ollie hanged out with his dad, they met a American boy tourist buying food, Ollie knew how to greet the boy, chit chat and make a friend with him.
Now, Ollie is expecting how to learn more from Mr. Clint so that he can travel with us over the world.