83. My father have already been to Ha Noi many times.
84. She wishes she took part in the game.
85. Do you have any difficulty in solving this problem?
86. I don't recognize her because she changed a lot.
87. It's a long time since we last met.
88. Christmas was the last time we had a party.
89. I would buy this book if It was cheaper.
99. Your book should be take great care of.
100. The Pikes have moved to London since 2002. (Nếu Pikes thì sử dụng has/Nếu The Pikes thì sử dụng have).
101. The students are playing badminton at the moment.
102. They practiced their music lesson at 7 o’clock last night.