complete the sentences (1-6) with the most suitable prepositions (a-d).
1. i deal lot of people in the company and with our customers.
a) -- b) in c) by d) with
2. in the modern world it is normal for companies to do projects
countries.
a) about b) in c) by d) between
3. a successful business is built financial management.
a) up b) at c) with d) on

4. the management store has terrible customer service skills.
a) for b) of c) at d) by
5. big corporations are less flexible so it's difficult to adopt new
changes or be creative and innovative.
a) for b) to c) about d) of
6. our experienced project manager is good how long each activity
will take.
a) in b) on c) at d) with