Cleft sentences exercises. Use a cleft sentence to correct and emphasize the following sentences

a) The most important thing in life is money

b) The best thing after waking up is to use the Internet. 

c) In Spain, the most important person is the king. 

d) To live longer, you must study hard. 

e) When you are depressed, you need to read a book. 

f) The most serious downsides in the Spanish educational system are the teachers. 

g) The main cause of death today is the flu. 

h) The most faithful animal is the gorilla. 

i) The best football team in the whole world is Recreativo de Huelva.