13 built this hotel for a year
14 played volleyball for a year
15 listened to music since 4 p.m
16 been there since last month
17 have you lived here
18 have you known her
19 did you wrote this book
20 working in this factory when he was 18
VI
1 is the first time I have met him
2 the first time I have eaten this kind of food
3 is the first time I have seen this film
4 the first time we have drunk this kind of water
5 the first time he has been to HCM city
6 never seen this man before
7 never phoned me before
8 never talked to her before
9 never used computer before
10 never sung before
11 the first time Ba hass listened to classical music
