B4

Starting your own business has never been easy. I was no exception. One of the toughest days in my business was my first day.
(степень сравнения)

TOUGH

B5

In every business someone has to be the fist person to say ‘yes’ and pay you money. So I had to find my first client and I had to do it myself.
(сам)

MY

B6

It was nerve-raking for me and I was shaking in my boots. But I took a deep breath and stepped forward.
(past continuous, т.к. два действия происходят параллельно)

SHAKE

B7

I had an online business, but I took my business on the road to get my first client. So what did I do?
(past simple, т.к. вопрос о действии в прошлом)

DO

B8

I found a potential client and went to his business. I mentioned his vast experience and then asked if he had ever thought of writing a book.
(past perfect, т.к. действие происходило до определённого момента в прошлом)

THINK

B9

I offered to help him for a reasonable compensation and he was captivated by my project.
(past simple passive, т.к. он  был очарован моим проектом, а не очаровал к.л.)

CAPTIVATE

B10

At the moment I’ve got five clients and I am writing my fifth book.
(present continuous, т.к. это настоящее для говорящего)

WRITE