59.This plant’s ______productivity______ is high, so it attracts a lot of investment. (produce)

 60.The ________production________ of this machine requires the latest techniques. (produce)

 61.This energy-___________saving________ bulb is not cheap. (save)

 62.The __________consumers_________ are requiring us to repair the machines. (consume)

 63.Watching Korean films on TV is a time-____consuming_________ activity. (consume)

64. Water ______consumption__________ is increasing this summer. (consume)

 65,The ___________efficiency________ of the model attracts us. (efficient)

 66.They are working ________effectively______, so we are ____satisfied_________. (effect / satisfy)

67. Life always needs a lot of ___________innovation________. (innovate)

 68The ____________conservators_______ are cleaning the beach. (conserve)

69. _________ultimately__________, our environment must be protected. (ultimate)

70. Tet is the most important ___________celebration________ in Viet Nam. (celebrate)

 71.Fruits’ festival in Suoi Tien park is a very ______joyful_____________ activity. (joy)

72.Look at the _________colorful__________ bulbs. They are so beautiful. (color)

73. My ____________feeling_______ are so strong that the word “love” can’t describe them. (feel)

74. The ______volcanic________    ______eruption_____ caused a lot of bad effects. (volcano/ erupt)

 75.Our ___scientists____have not warned our fishermen about the typhoon carefully. (science)

76. A __________disastrous______ eruption occurred here last night. (disaster)

 77.The beach is full of all kinds of ______pollution__________. (pollute)

 78.He used all his _____strength_______ to force the door open.      STRONG

 79.The police are interested in the sudden ______disappearance______ of the valuable painting.      APPEAR

 80.My teacher ______encourage______ me to take this examination.      COURAGE

81.Recently health foods have increased in ____popularity________.      POPULAR

 82.The old lady hid all her ______savings______ under the floor.      SAVE

 83.Your money will be refunded if the goods are not to your complete ______satisfaction______.      SATISFY 

84.The council has promised to deal with the problem of ____unemployment_____ among young people.    EMPLOY

85.Tung had eaten so much he had to ______loosen______ his belt.      LOOSE

 86.The dictionaries are with the other _______reference_____ books.      REFER
87.He was very ________proud____ of the work he had done.       PRIDE
88.There is a _____reduction_______ of 10% in the amount of money available for buying new books.     REDUCE
89.He is interested in the ________preservation____ old buildings.      PRESERVE
90.Saucepans are sold in the _____household_______ goods department.       HOUSE