1chia động từ trong ngoặc

1. when my parents were on holiday I ( stay).........with my aunt for a week
2. they b(learn)......all the new words They need not wolrry about the test
3. we (never/try)......chicken tandoori before
4. so far this month there (be)......... three robberies in this street
5. since I (be)....... in this city I (not see)........him
6. he ( live)...........in malaysia for a year and when he (be).........a studen