91. We haven't seen her since we left university.
=>The last time we saw her was when we left school.
92. Walking in the rain gives my brother pleasure.
=> My brother enjoys walking in the rain.
93. Keeping the environment clean is very important.
=> It’s very important to keep the environment clean.
94. Minh began to collect stamps in 2000.
=> Minh has collected stamps since 2000.
95. Let's meet inside the center, at the cafe' corner.
=> How about meeting inside the center, at the cafe' corner.
96. Peter used to be taken to school by his mother when he was five. (xin lỗi nhưng câu này mình quên cách làm rồi)
=> Peter's mother
97. I would like you to help me put the chairs a way.
=>Do you mind helping me put the chairs away?
98. Please don’t make any noise; I'm very tired.
=> I'd rather you didn't make any noise if I am tired.
99. This is the best computer I have ever used. (này có 2 cách làm nha)
=> I have never used such a good computer.
=>I have never used a better computer than this.
100. He hasn’t chatted with his classmates through the internet for ages.
=> It's ages since he last chatted with his classmates through the internet.