II. Complete the text using the correct conditional form of the verbs in brackets.

The perils of fast food

Supersize Me is a film about the effects of eating fast food. The director wanted to see what (1) _______________ (happen) if he (2) _______________ (consumed) nothing but fast food for a month. Each day he consumed 5,000 calories through eating three fast food meals. When humans (3) _______________ (put) that much energy into their bodies, they (4) _______________ (not use) most of it in one day. This means there is leftover energy, which is converted into fat and stored in the body. If the body (5) _______________ (not need) this energy because the following day it receives another 5,000 calories, this fat (6) _______________ (remain) in the body’s fat cells. If this habit (7) _______________ (continue), it is likely that the person (8) _______________ (put on) more and more weight. This is exactly what happened and the film director put on 11 kilos. He made the documentary because he wanted to show how quickly fast food can cause weight gain. Doctors have suggested that if a teenager (9) _______________ (eat) a diet of over 2,500 calories, they (10) _______________ (increase) their body weight to obese levels within a few years.