3)
1. I haven't talked to her since 2014.
2. He was the fastest runner in the competition.
3. How long have you studied abroad, Jenny?
4. We have lived in Ha Noi since 2003.
5. She hates talking to aggressive people.
6. They always go school early.
7. We enjoy playing football very much.
4)
1. It's lovely to see you again.
2. She is clever enough to answer all the questions.
3. He drives fastly so as to come to the station on time.
4. My mother dresses carefully in order to protect herself from cold.
5. Mai studies hard in order to keep pace with her classmates.
5)
1C - 2D - 3B - 4A - 5A
6)
1B - 2C - 3A - 4D - 5B
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Chúc bạn học tốt !