ответ:4.They were waiting for us when we arrived at the station.
5.When the teacher gave the instructions, I was listening to the partner.
6.When she went out,she was wearing white top and blue jeans.
7.My father was driving a car when I phoned him.
8.I switched off the lights while I was getting ready to leave home.
9.It was raining when I woke up in the morning.
Объяснение:Past simple-так называемая форма глагола в времени,обозначает действие,которое было сделано в ,и уже закончилось.
Past continuous-это форма глагола в продолжительном времени.он обозначает действие которые было сделано в ,но длилось некоторое время и используя эту форму глагола,мы как раз таки можем показать длительность действия.
1. I would like to learn English, because this language is spoken in many countries, and it is a lot easier to travel when you know this language.
2. The main diffuclty is the langauge barrier, I am a shy person, so it is quite hard for me to start a conversation, especially in another language.
3. The main reason why peole don't progress in their studies is because they don't have a strong motivation and someone to practice the language with. Having conversations with a native speaker can help you improve really fast.
4. I don't think there is a danger, as I love my first langauge so much, that no other language will ever replace it
:)