It’s reported that Nanjing Metro Line 3 was in service __________ April 1,2015.—What _________ exciting news! I believe the public transport system of Nanjing will be much better.

gh _______ to be the best in a recent science competition, the student remains modest.

He used to__________up late on Sunday mornings, but now he gets used to________up early every morning.[ ]

_______they say, just take your own way.

______ I want to travel around the world one day.