Frank insisted that he was not asleep ________ I had great difficulty in waking him up.[ ]

With their reputation _______ , food companies need to_______ their image.

I tried hard to get some information about the new technology out of his mouth,but he remained __________.

He complained that this was the third timehe _________ of the changes of the meeting.

. It used to be thought _____ the Earth wasflat.