This is probably best if you are in Form 4, 5 or 6 but it wouldn’t hurt to try if you are in other Forms. There are many useul activities on this website though not all of them work on the computer at school. It may depend on what programs you have on your own computer at home. Some sections just have reading such as this one on PETS. As you read some of these, check any vocabulary you are not sure about. It’s a good way to improve your general knowledge.