---I didn’t pass the Maths exam last time. I’m so worried about it. --- harder, you will make much progress .
The river is about six thousand six________and seventy kilometers long.
—Thanks________joining the Talk Show! —You’re welcome.
The accident happened________7 p.m.________9 p.m.
—How far is it from the railway station to the hotel? —It’s about________walk.
I like going to school________my bike.