On this
page, students work with the Present Simple and the Present Continuous. I don't
know which age these exercises are for but I think it is useful to
remind them of the theoryin order to be able to do the exercises correctly.
Therefore, I have been looking for some pages on
internet and I have found one that I think is really interesting because,
firstly, you read the grammar, the rules and examples, and then you do the exercises, which become more and more difficult. You can check your answers and have your mistakes explained.
Children like to use the computer, so they can learn some grammar while thinking that they are playing and not doing boring homework.