Gap-fill exercise

Complete the sentences using the verb in brackets in Present Simple or Continuous.
1. I (think) about Peter. He was so strange yesterday!
2. She (love) chocolates.
3. Please, be quiet. I (listen) to the radio.
4. The students (not understand) the problem.
5. I love those flowers. They (smell) so nice!
6. I (think) I´ll go home now. It´s getting late.
7. He (prefer) staying at home rather than going out.
8. This cake (taste) lovely! How did you make it?
9. Can you speak louder? I (hear) what you (say).