Simplify the following text for a Grade 7 native English-speaking person.
Original: When the Woodlands Extension was opened in 1996 , the Branch MRT Line consisting of the route from Jurong East MRT Station to Choa Chu Kang MRT Station was integrated into the main line .
Simplified: The Bishan MRT Station and Dhoby Ghaut MRT Station can transfer a commuter to the Circle MRT Line .