Chia động từ theo thì

đề : chia đọng từ theo thì
1. Keep silent ! l ( listen) ........ to the radio.
2. Hung and his friend (play).......... badminton at present.
3. Anita and Susan are in the dining room. They (eat)........ breakfast.
4. Harry Potter Books ( write) ........... by J.K Rowling.
5. We can't use my office at the moment. It ( clean) ..........