Выберите верный вариант ответа1.They...each other for 10 yersA.knowB.have

Изберите верный вариант ответа
1.They...each other for 10 yers
A.know
B.have known
2...you ever been to Moscow
A.did
B.have
3.He...not done his homework by 5 o'clock yesterday
A.has
B.had
4.His mother...just opened the window
A.has
B.had
5.We...read a book this week
A.didn't
B.haven't
6.She...come yet
A.has
B.had