I'm afraid this is bad news! From today I won't be able to answer all of your questions in the comments below lessons here on the site.
I'm really sorry about this, but I have reached the stage where I'm spending several hours each day answering questions. I realise that this was a very useful service, but I just don't have enough time to answer everyone individually any more.
You are still welcome to post comments, and I will continue to read them. I will answer the most useful comments by making lessons about them. Hopefully, students will continue to talk to each other and help each other in the comments area too.
Thanks for your understanding. The daily lessons will continue as usual.