Грамматика и Лексика

Преобразуйте, если это необходимо, слово THINK так, чтобы оно грамматически соответствовало содержанию текста.

I had an online business, but I took my business on the road to get my first client. So what did I do? I found a potential client and went to his business. I mentioned his vast experience and then asked if he __________ (ever) of writing a book.