_____ that the earth was flat?

I certainly didn’t appreciate （ ） when I made mistakes.

_____ finished his work, he had to stay at home on the weekend.

The most important is not_____ you do, but_____ you do it.

The engineer （ ） my father works is about 50 years old.

He was （ ） enough to see that Jake was the best candidate for the job.

Yon don’t have the right to blame me _____ being late， for I was busy typing your business invitations.

Since Dick was busy, he rarely had time to go to the cinema; _____.

We’re talking about the piano and the pianist （ ） were in the concert we attended last night.

Frankfurt, Germany, is one of the most （ ） populated regions in Western Europe.

The sales manager had his secretary _____ a press conference for their new products.

Tolerance （ ） respecting the opinions of others.