Решение:
- 1-g) Betty's plants died because... she hadn't watered them.
- 2-d) Bob couldn't buy the new computer because.... he hadn't studied at all.
- 3-j) Sammy couldn't fall asleep last night because... he had lost his old one.
- 4-a) The little girl was crying because... she had lost her doll.
- 5-i) I didn't have to buy groceries because... I had gone shopping the day before.
- 6-f) Kevin failed his exam because... she had forgotten to set the alarm.
- 7-b) Monty bought a new camera because... she had left her purse at home.
- 8-e) Clara couldn't pay for lunch because... he had spent all his money.
- 9-h) Susan slept late because... he had watched a scary movie.
- 10-c) I couldn't speak to the boss because... he had already left the office.
Ответ: Сопоставление выполнено.