1)While I (was waiting/waited/have waited) for him to call up, he (had/was having/have had) a good time in the bar. 2)

1) While I was waiting for him to call up, he was having a good time in the bar. 2) She was writing this exercise yesterday at 8 o\'clock. 3) He invited me to the party yesterday. 4) I have passed my exam in history today. 5) He read a book two days ago. 6) They saw this film last week. 7) She was painting the picture when I came. 8 )I was making my report when you entered the ball. 9) They were learning the new words yesterday from three till seven. 10) It has rained this week.