the blacks (were/are) having dinner when i phoned them last

the blacks (were/are) having dinner when i phoned them last _______Browns were having dinner when the telephone rang. A. --Where ___the Blacks last Sunday.--In the park.A.were B.are 英语改错1.Last night when Steven and I were having a walk in the When I saw them last time,they were working ___ the farm.A a when i come in,the family___ having dinner What were you doing when I phoned you yesterday evening? when i phoned yesterday,your brother _______me you were out I got home ____they were having dinner.为什么填while而不是when （ ）Browns were having dinner when the telephone rang. A.A B. The Whites were having dinner __(since,when,before,while)(选1 we were having breakfast when i heard the telephone______(ri