-There a dolphin show in the zoo tomorrow . -Great ! Let's go to see it together.
— Look! The old man ______ a big box into the house.— Let’s go and help him.
When you play sport, you need to guard ______ accidents.
Do you know ______? I want to see a funny film.
The Silk Road was ______ long that it passed through many countries.
When you ______ a difficult task, try to continue with it and finish it.