Write the correct form of the words in brackets

 Write the correct form of the words in brackets.
Question 16.
The________ flight from New York to London was just under three hours. (FAST)
Question 17.
Some popular alternative energy sources are hydroelectric power, _______ power and wind power. (SUN)
Question 18.
Amanda wants to be the most famous singer in the world. She's got a lot of _______! (AMBITIOUS)
Question 19.
When the band play a concert, they never stop dancing. They’re really____ ! (ENERGY)
Question 20.
Biomass fuels include wood, forest, animal waste, grains, ______crops and aquatic plants. (AGRICULTURE)