61. Traveling around the city in a day is impossible
->it's
62. Is it all right of o take a photograph??
->Would you mind
63.''Shut the door but don't lock it ''she said to us
-> She asked
64 Air travel is faster than any other kinds of transports
->Air travel is the
65. We haven't seen each other for over two years
->The last time
66. I would like you to help me move this table
->Do you mind
67. The water was so cold that the children could not swim in it
->The water was not
68.mai keeps leaving her pen at home
->mai is
69. She is not only a teacher , she is also a singer
->Not only
70. He always borrows my pen
->He is
71. Chirstmas cards shoulf be sent a week before Chirstmas Day
->You
71. ''We are waiting for the school bus '' said the children
->The children said
72.Nobody has used this machine dor years
->this machine
74. Soes can't possibly grow in such poor ground
->It is impossible
75. It is two months since i saw him
->I haven't
76. Tax free goods can be bought before you get on the plane
->You
77. The repaiman is going to repair my car next week
->We are going to have
78.it was such a interesting film that we watch it several times
->the film
79. ''Where are you going next week ''? Ann said to Thanh
->Ann asked
80 We should keep the envinronment clean
-> Th envinronment
Help ^^
1.You should send christmas card a week before christmas day
2.You can buy tax free goods before you get on the plane
4.tea can be made with boiled water
5.the celebration will be held before january
6.their car has to be repaired
7.the window was broken by the boy last night
8.much money is spent on advertising evevryday
9.some pictures of his father was taken by Hung yesterday