Помогите Плиз срочно, нужно поставить глаголы в скобки в прошлом простом или в настоящем совершенном

Put the verbs in brackets in the Past Simple or in the Present Perfect.
1.  I ________ (never/ be) to the USA. I ______ (want) to go there last summer but I couldn’t.
2.  He _______ (live) in this street all his life.
3.  His father ________ (come back) to London last Sunday.
4.  Yan __________ (write) a letter to Nick two days ago.
5.  They  ________  (just/ buy) some postcards.​