1 We haven't met for a long time.
2 She hasn't visited me for five years.
3 I haven't had such a delicious meal before.
4 It is the first time I had such a good dish.
5 He hasn't gone abroad before.
6 The students have collected old clothes for their charity programme since last week.
7 I haven't seen him for 2 weeks.
8 We have eaten since it started to rain.
9 This is the first time I ate this kind of food.
10 Minh has collected stamps since 2000.