Loulan, once a small, wealthy commercial city, is believed by many people___________over gradually by sandstorms from AD 200 to AD 500.

.Polly found herself_________ up at a man_________with his hand___________on her arm.

The boys, ________ with this somewhat terrifying figure, had lost their tongues.

______ in thought, he almost knocked into the car before him.

---Tom, must you have the light______ all night? It’s really a waste.
---Sorry, I won’t do it again.

With his soldiers ________ for months, the general became even more worried when he thought that the enemy might began another attack at dawn.

Rather than ___ football with his friends, he decided to stay at home going over his lessons.

After several months of hard work, the students are looking forward to the summer holiday and ________  a visit to Expo 2010 Shanghai China..

．------ My leg hurts a lot.
------ You’d better go to the doctor and have it _____.

A．examine

B．examined

C．examining

D．to be examined

．------ Have you checked all the relief ______ to the people in the drought-hit areas?
------ Yes, several times．But I’ll check it once more．