____ such a chance, why don't you have a try ?

For many years, ____ animals for carrying food and other supplies from one area to another has been a means of living in Xinjiang Autonomous Region .

--Who would you like to see at the moment?
--The man ____Mr.White .

----- What do you think of the advice ______ by our English teacher?
----- No one has given me _________. We’d better take it strictly.

What great trouble the boy had           his father to quit smoking!

It’s reported that some wild animals were found      in a big cave in the mountain.

The message is very important, so it is supposed _______ as soon as possible.

with so much homework to do，David told his sister_____so much noise.

The new machine，if _________ properly，will work at least ten years.

The difficulty which we had _______ with the local people has now been removed.