89. She started to learn E 8 years ago.

90. It’s 8 years since she learnt English.

91. He hasn't laughed so much for ages.

92. It’s ages since he last laughed so much.

93. I haven't enjoyed myself so much for years.

94. It’s years since I last enjoyed myself.

95. The telephone rang for hours

96. It’s hours since the telephone last rang.

97. I haven't seen him for ages.

98. It’s ages since I last saw him.

99. I have learned English for four years.

100. We started learning English four years ago.

101. Ly’s father started to stop smoking last year.

102. Ly’s father has stopped smoking since last year.

103. The editor hasn’t written to Mai for a month.

104. The editor last wrote to Mai a month ago.

105. How long have you learned spanish?

106. How long ago did you learn Spanish?

89,It's 8 years since she learnt English.
91,It'sages since he laughed so much.
93.It's years since I enjoyed myself so much.
95.It'shours since the telephone rang
97,It'sages since I saw him

99,We started 4 years ago

101,Ly 's father learn smoking 1 year ago