We don’t think the experiment is _______ failure. Atleast we have gained _______ experience for future success.

I don’t doubt ____________ she can do it well, but Idoubt _________ she is willing to do it.

The lack of eco-friendly habits among the public is thought to be a major _____________ of global climate change.

When it was his turn to deliver his speech, ______, he walked towards the microphone.

Bob, are you going to study abroad—Sorry, I’m not_________ about it.