Read the following passage and choose the correct answer to each of the questions.
We need calories or ___(1)___ to do things every day. For example, when we walk to school or ___(2)___ a bike to school we spend a certain amount of ___(3)___ and even when we sleep, we also use them. But how many calories should we ___(4)___ a day to stay in shape? It’s difficult ___(5)___ us to calculate. If people want to keep ___(6)___, they should remember that everyone should have between 1600 and 2500 calories a day.
We get calories ___(7)___ the food we eat. If we eat too much food and don’t take part ___(8)___ any activities, we can get fat quickly. So besides studying, we should do some ___(9)___, play sports or do the housework, such as cleaning the floor, cooking etc. Otherwise, we don’t eat enough, we will be ___(10)___ and weak.