Give the correct form of the verbs in the brackets (Chia động từ trong ngoặc cho phù hợp)
20. Be quiet! The baby (sleep) ________.
21.Look! The man (smoke) ________ there.
22.. She (write) ________ to her parents now.
23.. My father (work) ________ in the garden at the moment.
24. John (listen) ________ to the radio now?
25. He (play) ________ chess at the moment.
26. The workers (work) ________ in the firm at the moment.
27. Please be quiet! You always (make) ________ so much noise so I can't concentrate.
28. Tony (not have) ________ a bath at the moment.
29. Listen! He (read) ________ a story by Shakespeare.
30. At present Richard (study) ________ in London.