---How was your trip?---The ____trip was so _____ that we felt very tired.
––Can you ride a bike? ––No, I ____.
When I got home last night, my parents ____ for me at the table.
How are you now? Go to see the doctor ____ you don’t feel well.
––Beijing is a big city, isn’t it? ––Yes. In fact, it’s one of ____ cities in the world.
––Why are you late, dad? ––I met a friend and we ____ in the street for a while.