Fill in the blank

      In the future, we will live in amazing new houses. Our houses will use the (27)  .................... or the wind to make electricity. We won’t have cookers, dishwashers or washing machines. We will have robots to (28)  …………… our dinner and wash our clothes. We will have robots to look after our children, and to feed our cats and dogs. We won’t use computers. We will have (29)   ……   remote control units. We can surf the Internet, (30)..................... and receive e-mails and order food from the markets without getting out of bed. We won’t have TVs or CD players because we will have watches that play music, take pictures and tell  time.
Our cars might not use gas. They might use energy from air, water or (31)  ………In the future the air will not be (32)…. Our world will be a great place to live in.
 27.   A.sun                      B. rain               C. storm            D. fog
 28.   A. eat                      B. cook             C.do                   D. have
 29.   A. specially             B. speciality      C. special           D. specialize 
 30.   A. wash                   B. do                C. send               D. write
 31.   A. flower                B. fruit              C. vegetable       D. wind
32.   A. pollution             B. polluted        C. pollute           D. pollutting