Sentence, Claus...

Which of these is not an example of subordinating conjunction related to cause?

What he was talking about in public ____ something he should only talk with his intimate friends.

Which of these words are not used by independent clauses?

Which of these is an example of adversative co-ordinating conjunction?

There is a common belief throughout human history ____.

After I went out, I suddenly realized that ____.

Which of these words is not used to join the dependent clause with the main clause?

No one knows ____ he has finished all the necessary preparation. I will ask him tomorrow morning.

It seems ____ he won't be able to catch the last bus to the terminal.

I wonder ____ .

____ the speaker said next was lost in the general uproar.

In relative clauses, which of these is used to refer to things?

He can't believe ____ he gave up smoking last week.

____ he chose to go this summer is not known by anyone.

____ they didn't attend to this important meeting is still a mystery for us.