1. we began learning english four years ago
= we......have learnt English for four years.............
2. she last wrote to me seven months ago.
=she.....haven't written to me for seven months...........................
3. he started to give up smoking last year
=he....has given up smoking for a year....................
4. how long is it since you used this car
= when......did you last use this car?...............................
5. how long is it since you last used this car.
= when......did you use this car?.........................
6. she last ate this kind of food in jannary
= she......hasn't eaten this kind of food since January.................................
7 she hasn't visited me for fuor months
= the last time....she visited me was four months.............................
8 the last time we saw her was when we left univerity
= we......have not seen her since we left univerity................
9.it's two months since I bought this house
=.I.....have bought this house for two months...............................
10. minh stared to collect stamps in 200
= minh....has collected stamps since 200..................................