With the help of this KS2 Which Sentence is Grammatically Correct? Test Practice, you can make sure there are no gaps in your children's understanding of tenses, or assess their current levels of understanding. The resource presents a series of sentences that children tick to decide whether they are grammatically correct, which is similar to a question used on a past GPS paper. The questions are differentiated to four levels of challenge to make it easier for you to pitch them to the right level for everyone in your class. Make sure your marking doesn't take up a lot of your time with the help of our handy answer page.