Mark Zuckerberg’s enormous success has taken a lot of hard work and ________ . 

Martin Luther King devoted his life to the _______ of voting right for black people.

After a hard-working day, I went to _______bed and had ________most beautiful dream ever

Overpopulation in urban areas tends to create unfavorable conditions, which may result in ______ of food in developing countries

They hope to _____ a cure for the disease.

Was it really necessary that I _____ there watching you the entire time you were rehearsing for the play? It was really boring watching you repeat the scenes over and over again

Mark the letter A, B, C or D on your answer sheet to indicate the word whose stress is placed differently from that of others in each of the following questions