Exercise 4. Fill in the gaps with the verbs in the appropriate tense form. 1. We had a family evening yesterday. My grandfather and my father _________ (to play) chess, while my grandmother _________ (to knit). My mother _________ (to cleaning) while I and my brother_________ (to read). 2. I _________ (to walk) on the street, when I _________ (to see) a man fell. I called the emergency and _________ (to wait) for help. I _________ (to sit) near the man, when the medicals arrived. 3. Tony and Ann _________ (to ride) through the forest. The sun _________ (to shine) brightly and the birds _________ (to sing) beautifully