Past continuous или past simple. james ellis (go) on a business trip last week. he (be) (visit) some customers in frankfurt. he (leave) home early on monday morning and (take) a taxi to the airport. he (get) there at about 8 o'clock. he (check in) and (go) to the airport lounge. he (buy) a newspaper and (go) to get a coffee. he (be) (drink) his coffee when he (see) an old friend, bob. he (be) very surprised that bob (be) in london and (find out) that he (be) (start) a new job in the city. as they (be) (speak) they (hear) an announcement. "would all passengers for the 9.30 flight to frankfurt please go to boarding gate 10". james (say) goodbye to bob and as they (be) (leave) bob (give) him his business card and (ask) him to phone when he (return) from frankfurt.

James Ellis  went on a business
trip last week. He  was visiting some customers in Frankfurt. He left home early on Monday morning and  took a taxi to the airport. He got there at about 8 o'clock. He checked in and went to the airport lounge. He baught a newspaper and went to get a coffee. 
He was drinking his coffee when he saw an old friend, Bob. He was very surprised that Bob was in London and  found out that he was starting a new job in the city. As they 
were speaking they heard an announcement. "Would all
passengers for the 9.30 flight to Frankfurt please go to boarding gate
10". James said goodbye to Bob and
as they were leaving Bob 
gave him his business card and 
asked him to phone when he returned from Frankfurt.