1) I'm working hard because I've got exams next week
2)Len's buying his wife a present —-c-because it's her birthday soon
3)Jane's washing her hair because they're dry and the sun's hot
4)Peter 's looking for a better job-а-because he doesn't earn much
5)We're buying some new clothes g-because we're going to a wedding soon
6)She's watering the flowers f-because she's going to a party tonight
7)The baby's crying e-because he's hungry