III. Put the correct form of the verb in brackets. 31.Nam ( play) ________________________ soccer tomorrow 32. By 2020, people in Viet Nam (spend) _____________________ a lot of money on heating. 33. What_____________we (do ) ____________________ to save electricity ,dad ? We will watch less TV. 34. At 10 o’clock tomorrow he ( work ) _____________________ in his office. 35. My father ( visit ) ____________________ to Ha Long Bay next week. 36.At 5 o’clock tomorrow Nam ( play) ________________________football with his friends. 37.They ( build) _____________________ their house this time next week. 38.At 8 a.m tomorrow, my sister (learn ) _____________________ English with her friends. 39.Ba ( buy ) ____________________ a new house tomorrow. 40.We ( build) ________________________ a hydro power station in this area next month. 41.I ( meet ) ______________________ her at the movie this time next Saturday. 42. Don’t call us between 7 oclock and 8 o’clock. We ( have ) dinner then. 43.Two years ago, Nam ( learn ) ______________________ English at a small village school. 44.What __________you (do) ____________ yesterday morning? 55.We ( travel ) ______________________ to Hue next month. VII. 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 (66)........... ..........! Solar cells can easily be installed on house (67) ..... .........., so we don’t need any new space. Compared to other (68)...................... sources, they also possess many advantages: wind and water power rely on turbines which (69).................noisy, expensive and which take up large space. Solar cells are totally silent and (70).... .......... As they have no moving parts, they require little maintenance and have a long lifetime.