Give the correct forms or tenses of the verbs in brackets.
1. Water (boil) ................... at l00oc
2. Mr Hoa (teach) ................... English in this school since she (leave) ................. the university.
3. We (buy) .................... some souvenirs in Nha Trang next week.
4. I would like (tell) ................... you about my family.
5. We (begin) .................... to learn English there years ago.