Помогите с английским,пожалуйста
Put the verb into Present,Past or Future Simple Passive
1.America _____ in the 15th centure.(to discover)
2.More than 800 poems _________ by Pushkin.(to write)
3.A lot of popular songs ____________ in English (to sing)
4.Australia _________ "Lucky Country" (to call)
5.Books of English and American writers ________ in Russia (to read)
6.The telegram ________ two days ago (to send)
7.Christmas ___________ in the most countries (to celebrate)
8.I _______________ one last chance by my parents (to give)

1 was discovered2 were written3 are sung4 is called5 are read6 was sent7 is celebrated 8 have been given