Write questions with how long and when.
1 It's raining.
(how long ?). How long has it been raining?
(when?). When did it start raining?
2 Kate is learning Italian.
(how long / learn?)
(when / start / learn?)
I know Martin.
(how long / know?)
(when / first / meet?)
Bob and Alice are married.
(how long?)
(when?)