past perfect simple or continuous

PAST PERFECT They were pleased to arrive; they (travel) for 12 hours had been travelling PAST PERFECT I passed the exam because I _ (study) a lot had studied PAST PERFECT I was able to buy a new computer because I _ (save) enough money had saved PAST PERFECT had forgotten I got wet because I (forget) my umbrella PAST PERFECT He was upset when he lost his phone He (only buy) it the week had only bought before PAST PERFECT By the time I managed to see her she _(be) in hospital for over a week had been PAST PERFECT He was tired because he (study) all weekend had been studying PAST PERFECT He was so pleased had caught (catch) three fish in just one hour He PAST PERFECT She managed to get through to Paul She (try) to call him three times that week PAST PERFECT had been painting (paint) She for a long time before she became famous PAST PERFECT He got burnt because he (sit) in the sun too long had been sitting PAST PERFECT He had a stomach-ache because he (eat) too much had eaten PAST PERFECT When the company shut down had been(work) working she _ there for 15 years PAST PERFECT He _ had (be) been an M.P for a long time before he became President [...].. .PAST PERFECT He got burnt because he (sit) in the sun too long had been sitting PAST PERFECT He had a stomach-ache because he (eat) too much had eaten PAST PERFECT When the company shut down had been(work) working she _ there for 15 years PAST PERFECT He _ had (be) been an M.P for a long time before he became President