Put the verbs in brackets in the past simple or past continuous. I (see) a friendly dog while I (walk) to work today. They (go) to a birthday party last Saturday night. Nathan (walk) to school when he (meet) Tom. She (cook) at 5 pm yesterday when I called. I (read) a book last night when I (hear) my sister shouting. The baby (not / sleep) when Grandpa (arrive). The children (study) while their nanny (prepare) dinner. We (play) computer games the whole evening yesterday. I (not / do) my homework yesterday.