I have always been honest and straightforward, and it doesn’t matter ________ I’m talking to. [ ]

It is _____ he often fails in exams _____ makes his parents worried about him.

courage means the chance to win.

The mother didn’t know _____to blame for the broken glass as it happened while she was out.

I’d like to take this _________ to thank all of you for your hard work on this project.