Hello, children. My name is Peter Hindsight. I'm an archaeologist.
Archaeologists are like detectives.
We look for things from the past and
then try to see a picture of what hap-
pened a long time ago.​

что это не понимаю

Объяснение:

очень сложно

b: then where have you been? (present perfect)

a: oh, nowhere. i wanted (past simple) to go to america two years ago,but now i don't want to go there.

b: why?

a: i understood (past simple) that my wish is impossible, so i abandoned(past simple) that idea. 

и 2-я

b: have you heard some interesting news? (present perfect)

a: no.

b: i heard (past simple) that brian flunked (past simple) his exam last week. 

a: why did (past simple)he flunk the exam?

b: he lost (past simple)his homework, so he didn't repeat a topic.(past simple)

люди из белорусии( белорпусы) любят спорт. президент белорусии тоже играет в хоккей.