DS (5.9, asd) is although very vocal (can comment on a picture, talk about what he wants) does not yet ask questions although can answer most questions except why and how (he can count so if we ask how many he can answer. We have been doing why questions with him for the last 6 months, by prompting him to answer with a because, but he just does not get it. He is very bright, has no learning difficulties, hence has no problem learning. But it appears that he is just not understanding the meaning of why. He asks questions like 'where is mummy or where is my toy'? He used to just say mummy coming when he wanted me there, so we taught him to say 'where is mummy' and he understoodd what it means and then generalised it to other things by himself. He is developmentally at the age of a 3 years old speech wise (that's our thinking, not the SALT as he has age appropriate language for a lot of things). His autism seems to affect his speech and social communication only (he has no other issues). And we have noticed that he is going through all his milestones but late by at least two years. Any ideas as to how to work on him asking questions would be greatly appreciated. He answers questions, so we can have a conversation with him by asking questions, but he would never ask us anything. He does not seem to have the desire to ask anything, but he is very interactive and does not like being on his own. We model language for him when he is playing with us, but does not pick any up.
Thanks in advance.