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19.1 In this exercise you have to write questions with how long and when. Example: It is raining. (how long /it / rain?) How long hasit been raining? (when /it / start / raining?) When did it start raining? 1 Ann is learning Italian. (how long/she / learn / Italian?) (when / she / begin / learning Italian?) 2 I know Tom. (how long/you/know / Tom?) (when / you/first meet! Tom?) 3 Bob and Alice are married. (how long they / be / married?) when/ they get married?) ​