35. So mysteriously ______ missing that many puzzles wait to be solved.

The music he is playing sounds_____.

Oh, you said you’d tell me the latest news about the missing Malaysian Airlines flight MH370.– Sorry, I with my work at handI to that

I saw a number of pancakes in the plate, but now there is _______ left in it.

The poor student works hard during this holiday _______ he’ll be able to get enough money for the next term.