Age difference of 4 years / two of them age difference how old they were?How many kilometres to 2 A and C distance of 50 km / A and C distance?3 is it hot? It is too hot / spicy pepper4 the food tastes a little bit short, please give a bit of salt5 toothpaste as soon run out, squeeze you should have a little bit of it6 tomorrow is Saturday, I can sleep7 no matter how great the difficulties encountered, we will stick to it