71 These phenomena have been studied by scientists for many years
already.
72 He never comes on time. He is usually about 5 minutes late for the lessons.
73 He is unlikely to be working in the library now. He must be lying on the
beach.
74 When I arrived at the hotel, they offered to help me carry the bags to the
room.
75 We're being late. The film will already have started by the time we get to
the cinema.
76. It's been three years since I last was in Paris.
7. This is the first book in English, which he has read.
78. He said that he had been watching the movie since he had come from work.
79. It happened early in spring.
80. The Hague is in the Netherlands.
81. The heads of states will meet in Argentina.The heads of states are going to meet in
Argentina.
82. He has spent half of his salary, which is quite high, on the books.
83. We managed to convince him not to buy so many clothes