He hasn’t slept at all for three days. _____ he is worn out.
If you drive from the airport, go on the motorway and follow the __________.
None of us think it any good __________ a contract with such a dishonest boss.
Two-thirds of the money __________ on tents for the homeless people in Wenchuan.
There is a wide variety of new machines __________ in our company.
The first place to visit for foreign friends is the Great Wall, which is the __________ of China and one of the seven wonders in the world.