4 was invented
5 became
6 started
7 to prepare
8 to solve
9 was built - to honor
10 to learn
IV
1 to see
2 to use
3 to ask - to get
4 writing - waiting
5 to operate
6 to buy
7 to visit
8 to watch
9 to do
10 help
VII
1 Angkor Wat was built aroind the year 1100 to honor a Hindu God
2 The Eiffel Tower was designed by the French civil engineer Alexander Gustay Eiffel for the Paris World's Fair of 1889
3 The eiffel Tower is visited by millions of people every year
4 The walls was painted with different colour
5 The used tealeaves was taken from the tea pot and scattered on a tray
6 Old clothes and empty bottles were collected by the students for their mini-project
7 My Son Holy Land was built over seven hundred years ago
8 Chicago is often called "The windy City"
9 Hue Citadel was developed in the Nguyen Dynasty