__________ had enough time, they would have visited the Great Wall.
From the seventh century BC to the 16th century AD, about ______ dynasties built parts of the Great Wall.
The Great Wall separated the peoples of ________ and_________, while producing a barrier to communication.
With the basic goal of ___________, the Great Wall was built.
Through more than 2,000 years from the seventh century BC to the 16th century AD, ______ dynasties built parts of the Great Wall.
While producing a barrier to communication, the Great Wall separated the peoples of ________ and_________.
They took a long time to ___ the roof.
When a family wants to buy a house, they should save for _____.
They try to______ a new dictionary every other year.
The Great Wall was built with the basic goal of ___________. It represented people’s longing for a peaceful life.
They are turned around in a huge machine to get them __________ the forces they will experience in space flight.
They aspire to ______ a house of their own.(own )
To overcome the difficulty they were faced with, several companies ______ to form. a big one.
Virtual booksellers present a threat to public morality because they______.
Small planes have one distinct difference from ______ vehicles: they do not need to have anything built on the ground before they can begin work.
They have a very big budget. They_____five percent of their profit to that department .
If they built a Channel tunnel， you would__________ 查看材料
They wanted to ______ a discussion on economics.
In order to solve this problem, they have ______a new method.
Jim：The Great wall looks great. ______.Lucy：It was first built about twenty-five hundred years ago.
The weather _______fine, they decided to go out for a picnic
They had a __________ response to the attack of the enemy.
They are going to hold a party ____ September 1st.
Today's Great Wall was mostly built during the ________ dynasty, in order to protect people from raids by the northern tribes.
