51. He admitted having opened the suitcase _______ asking its owner.
52. Opening the parcel, he was surprised _______ what he saw.
53. She insisted ________ him wearing the red tie.
54. The teacher tried to explain the new formula________ his students.
55. The English contest organized ________ our teachers is an annual event in my school.
56. The participants must find ________ all the answers in order to go in the next round.
57. Are you excited____________ going on holiday next week?
58. She said to me “why don’t you relax ________a while?”
59. ________ the end of the film, the heroine was reunited with her family.
60. On behalf ________ our group, he made a speech at the meeting.
61. Have you washed your hands _________having lunch.
62. He was accused _________ having stolen a car.
63. Thank you very much _________ inviting me to your party.
64. We could not play soccer due _________the bad weather.
65. If you don’t want to watch TV. Turn it _________, please.
66. He is retired. He lives ________ his pension.
67. He’s getting bored _______ learning _________ heart.
68. The bomb went _______ killing several by-standers.
69. They cancelled the flight because ________ the storm.
70. The local people are very hospitable _________ strangers.
71. Why were you absent ________ class this morning?
72. In English lessons we always speak _____________ English.
73. When I bought the house, my sister helped me _______ with a loan.
74. Your father is very kind __________David.
75. Your plan is similar _____________his.
76. She is accustomed _______________getting up early.
77. This area is rich______________ oil.
78. Are you acquainted ______________ this man?
79. It was very nice ___________ him to give me a lift.
80. Smoking is harmful____________ our health.
81. Mary always take good care ________her children.
82. Our study is very important__________ our future and useful __________ our country.
83. Why don't you ask _________a pay increase?
84. Don't shout ________the child when he makes a mistake.
85. Ken prefers Chinese food ________French food.
86 How long have they been working _________the company?
87. He wore a hat, which made him look _________a spy.
88. I think your mother should let you make ________your own mind.
89. The pens made ____________ plastic are very cheap .
90. Many of the stories are based ________ rumor.
91. Was your friend successful________ getting a loan from the bank?
92. If you look __________ the book, you can find what you need.
93. You should make use __________ the books you have.
94. She was very upset__________ the news of her father’s death.
95.How would the body react ______ the extreme changes in temperature?
96.We congratulate you ______ your successful flight.
97.The American people shared ______ the Soviet people their satisfaction for the safe flight.
98.Most of the streets were named ______ national heros.
99.China became the third country in the world to be able to independently carry _______manned space flights.
100. . He was in orbit around the Earth ______ a speed of more than 17,000 miles per hour.