III. Give the correct form of the words given to complete the sentences: 1. The beaches in Viet Nam are really……………………………and beautiful. (PEACE) 2. ……………………….is still a major problem in most big cities. (POOR) 3. Living in the slums is …………………………….and unsafe. (HEALTH) 4. ……………………(or the state of having no home) is a significant social issue worldwide. (HOME) 5. In this city, only a small number of people are …………………….., with high living standards in the city. (WEALTH) VI. Read the following passage, then choose a word from the box and write the correct word next to numbers 1-5. There is one exemple. roofs garden non - polluting polluting the moon are renewable the sun Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.