simple past because past perfec 1. Harry/go to prison/rob the bank 2. Tia/cannot go into house/lose her key 3. Esti/pass her exam/study hard 4. Esther/have a st

1. Harry WENT to prison BECAUSE he HAD ROBBED the bank
2. Tia COULDN'T go into house BC she HAD LOST her key
3. Esti PASSED her exam BC she HAD STUDIED hard
4. Esther HAD a stoma chache BC she HAD EATEN too much chili
5. Harlan WOKE UP late BC he HAD PLAYED computer games till late at night
6. Koko LOST his bike BC he HAD FORGOTTEN to lock it.

1. Harry went to prison because he had robbed the bank.
2. Tia could not go into house because she had lost her key.
3. Esti passed her exam because she had studied hard.
4. Esther had a stomachache because she had eaten too much chili.
5. Harlan woke up late because he had played computer games till late at night.
6. Koko lost his bike he had forgot(ten) to lock it.