Помогите с английским. (Нужны только ответы)

1 Use the right words to complete the sentences: (писать только выбранное слово) 1. We didn’t go abroad this summer … to save money for a new car. 2. Mr.Brown is here … teaching you Biology. 3. My mum’s afraid of flying… watching a plane crash when she was young. 4. I don’t know …  I have to go there with you. 5. The Mexican tourists were … sociable people that we decided to take some photos with them. 6. Helen is the woman …  clothes is always elegant and fashionable.
(for in order due to such whose why)