68. Different kinds of flowers were planted by her father.
69. A speech is being made by the Prime Minister at the moment.
70. How many days were spent finishing the work?
71. One of my teeth was pulled out by the doctor yesterday morning.
72. Sandwiches are usually brought to him by his wife at lunch time.
73. The light went out while a cup of tea was being made.
74. When she went to Barcelona, Spanish was learnt by her.
75. Many experiments were made by the students of chemistry last week.
76. For the past years, all my washing has been done by hand.
77. A nest has been built in the porch by a pair of robins since last week.
78. She is said to be the best singer in this town.
79. It's believed that he will be the winner.
80. Tom is thought to steal food in the market 3 days ago.