Bài 3
1 studied
2 have read
3 have studied
4 traveled
5 had
6 did you do
7 have you learned
8 has never been
9 stopped - took
10 was - heard
11 has lived
12 left
13 have never eaten
13 met
14 has stolen
studied
have read
have studied
travelled
had
did you do
have you learnt
has never been
stopped - took
was - heard - cried
has lived
left
eaten
has stolen







