Electricity is the most common form of energy used today. (23)_________ the modern world, (24)_________ is instantly available at the touch of a switch. Electricity has numerous uses. The most common use of electricity is to provide artificial lighting.
In factoties, electricity is used to (25)_________ the electric motor of machines. In offices, electricity is used to light up (26)__________ workplace. It is also l used to operate air-conditioners, computers (27)_________ many other machines
23. A. Round     B. From     C. During           D. In
24. A.gas           B.water     C.electricity      D.coal
25. A.driven       B.drove      C.drive              D.driving
26. A.many        B.the         C.a                      D.any
27. A.so              B.but         C.because        D.and