27.The question _______ at present has something important to do with our nature.
________ for the free ticket, I would not have gone to the theatre so often.
________ as he was, he looked quite calm in that difficult situation.
“Sorry, sorry…,” he whispered, ________ talking to himself.
Little ________ about his own safety, though he was in great danger himself.
________ to use in April, 2010, the road has solved the long-standing problem of traffic jamsof this area.