1. Lan is too young to be in my class (old)
=> lan is not enough old to be in my class
2. They speak English all over the world
=>English is spoken all over the world . 
3. They built this temple 5 years ago 
=> This temple was built 5 years ago . 

1. Lan is the oldest in my class . 
2. English is spoken all over the world . 
3. This temple was built 5 years ago . 

2.=> E..is spoken all over the world..
3.=> This temple was built five years ago.