The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
She will have to find some other work for she can't ________ this loud noise any more.
The boy said ________ couldn't he work out the problem but his teacher didn't know how to do it.
.Carol said that the work would be well done by the end of October, ________ personally I wondered completely.
I've just seen no more than one copy of" Gone with the Wind"in the bookshop opposite. Tom, go and buy______ back.
— Have you read this book? — Yes. But that one is ________ worth reading.