51. Unless we reduce the use of water and electricity, we’ll have to pay more this month. -> If we.............................................................................................................................. 62. She last wore that dress at her sister’s wedding. -> She hasn’t..................................................................................................................... 53. My father is a better cook than my mother. -> My mother can’t........................................................................................................... 54. Although she performed well, she didn’t receive good comments. -> Despite ........................................................................................................................... 55. They built a big villa near my house. -> A big villa................................................................................................................................ 56. “I will never come back here again,” said the tourist. -> The tourist said........................................................................................................................ 57. My grandmother can’t see if she doesn’t wear glasses. -> Unless 58. He started learning Chinese five years ago. -> He has .................................................................................................................................... 59. Phong is the best student in our class. -> No ............................................................................................................................................ 60. Nobody can do this test because it is very difficult. -> Because of................................................................................................................................