The survey shows that ______ we are enjoying less and less good sleep, rates of heart diseases have risen rapidly．

____ the movie star has always been the focus of much media attention, he tries to lead a normal life.

______ I met him, I always think of the thing that happened between us.

________ I can see, there is only one possible way to keep away from the danger.

The map is one of the best tools a man has _    _ he goes to a new place.

- We've only got this small bookcase. Will that do?
- No, _    _ I am looking for is something much bigger and stronger.

_________ there are certainly times when giving up trying is the right thing to do, in most cases all needed is commitment and communication.

He was about to leave the office for home _______someone knocked the door and asked for some help.

We students are so busy with our homework that we have no time for outdoor exercise, ______ we have the desire.

Last Sunday I went to visit the History Museum where I saw a pot _________ about 1,000 years before.