Aidez moi svp je comprends rien

Conjugue les verbes entre parenthèses au prétérit ou au préterit en be + V-ing. Plusieurs solutions sont parfois possibles.

Last weekend (1) (to be) 17 March, and every Irish Dubliner (2) (to celebrate) Saint Patrick's Day.
At the Kelly's home, the parents (3) (to get dressed), when their 4-year-old Sean (4 (to pop) into their bathroom, wearing green overalls and an orange fluffy beard. And, he (5) (to start) to behave mischievously. The parents (6) (to look for their clothes, but Sean had hidden them everywhere in the house. Later on, as they .. (7) (to walk) to Phoenix park, Sean (8) (to pinch) everyone on his way and (9) (to tickle) old ladies...(10) (to be) they furious? Not the slightest! They (10 (to laugh) along with the boy. Back home, as Mr Kelly ..... (12) (to cook) dinner, Sean....(13) (to cut) his sister's hair. She (14) even (15) (to notice/not) it! * The Kellys soon ...(16) (to realise) that something had happened to Sean. As they. (17) (to watch) the Irish TV news, they....(18) (to learn) that leprechauns had invaded Dublin and that they had played tricks on some parents and their children. Is it a myth or reality?​