16/
1/This is the first time I have ever been to Sapa.
2/I haven't seen him since 2010.
3/It is the most amazing sight she has ever seen.
4/The weather in Sydney is not as hot as the weather in Rio.
5/They have lived in New York since 2004.
6/The last time we was in Ha Noi was 3 years ago.
7/Big Ben is the most famous tower in England.
8/New York is more modern than London.
17/
1/They have built this house for 2 months.
2/My father has worked in this factory for 1 week.
3/He has lived in HCM city since he was 8 .
4/He has learned English since he was 18.
5/They began working in that factory 5 years ago.
6/We started learning English 4 years ago.
7/My father has given up smoking since last year.
8/They started working in that factory in 2001
9/Lan didn't write to Maryam 1 month ago.
10/He started living in Ha Noi when he was 12.
11/I didn't meet her a long time ago.
12/How long ago did you start learning French?
13/When did you buy this car?
14/How long have you started listening to classical music?
15/I haven't seen her for 10 years.
18/
1/ We have lived here for 15 years.
2/How long have you begun to learn English?
3/I haven't written a letter to my aunt since May.
4/Mr Minh has begun to collect stamp since 2000.
14/
