Put the verbs in brackets in the correct form, present simple or present continuous. Diana ______ (sometimes forget)

1. Diana sometimes forgets to do all her homework. (Present Simple.) 2. I am trying to do this exercise at the moment. (Present Continuous.) 3. The students are just starting to get to know each other. (Present Continuous.) 4. Our teacher always tells us a joke at the beginning of the lesson. (Present Simple.) 5. Our English tests are getting harder and harder! (Present Continuous.) 6. Learning new vocabulary often takes a lot of hard work. (Present Simple.)