Помогите с англ. яз (грамматика)

Fill in the gaps in these sentences with a suitable verb from below. The first is done for you.

have look move open receive send start stop try work

1. She’s been trying to get through to head office all morning.
2. We’re very busy today. The phone ……....ringing since we started work this morning.
3. In 1986 our firm ……....two new factories in South America.
4. I ……....working here when I left school.
5. Is your secretary still looking for the file? Yes, she ……....for it for the past 20 minutes.
6. While you ……....lunch, Mr Casagrande called.
7. We ……....the letter to the customer a week ago, but we ……....a reply ye.
8. He ……....in New York, but then he ……....to Tokyo.