Past Simple or Present Perfect The scientist (to write/ already) his article. Andrew’s hamster (to eat / just) his food. The boys (to find / yesterday) an old cage in their garden. They (not / discuss / yet) the problem. Charle...

Past Simple or Present Perfect The scientist (to write/ already) his article. Andrew’s hamster (to eat / just) his food. The boys (to find / yesterday) an old cage in their garden. They (not / discuss / yet) the problem. Charles (to finish / just) his translation. They (go) to the theatre last week. My cousin (be) to the theatre three times this week. His niece just (write) the invitation letters. Helen (come) home, (have) a short rest, and then (begin) to help her mother. …. your relatives (take part) in the demonstration yesterday. …. your parents (tell) you about the project today. Yesterday my aunt (go) shopping and (buy) apples for a cake. Don’t buy pizza! I already (make) an apple pie. Let’s have breakfast! I (set) just the table. My mother is angry. My elder brother (not / take out) rubbish. What plants you (water) so far? I (visit) my uncle and aunt last Saturday?