ЗАДАНИЕ: complete the sentences with collocations above in their correct form. 1. My grand father _____________as a miner

1. My grandfather has been working as a miner for forty years. 2. I was working as a waiter in a fast-food restaurant but I quit because I can\'t stand the smell of hamburgers. 3. I wasn’t able to understand the instructions of my new digital camera and had to ask a friend to help me. 4. The number of cars in our city has grown in the last few years. 5. That suitcase is broken and now it doesn\'t close.