ПОМОГИТЕ ПОЖАЛУЙСТА, ОЧЕНЬ Безотлагательно НУЖНО.Exercise 1. Open the brackets and use

ПОМОГИТЕ ПОЖАЛУЙСТА, ОЧЕНЬ СРОЧНО НУЖНО.
Exercise 1. Open the brackets and use the verbs in Past Simple or Past Perfect.
1) I __ (see) his pictures before I __(visit) the museum. 2) Pedro __(learn) English before he __(go) to England. 3) After Bill __(do) his homework, he __(begin) playing on a computer. 4) Boris __(say) that his uncle __(go) to Kiev yesterday. 5) I soon __(realize) that he __(make) a serious mistake. 6) I __(write) a letter before my mother __(come) home. 7) Lily __(eat) all the cakes before her mother __(come).
Exercise 2. Complete the sentences using Past Perfect.
1) They couldnt enter the house because 2) I couldnt answer the questions because 3) My mother was worried because 4) They were late because
Exercise 3. Join the sentences using Past Simple and Past Perfect.
1) I read the letter. I threw it away. (when)
2) He past his driving test. He bought a car. (as soon as)
3) I took the book back to the library. I finished reading it. (when)
4) I spent all my money. I went home. (when)