Răspuns:
17)c.with
18)b.based
19)nu sunt sigura si nu vreau sa gresesc dar in principal este a.at
20)b.at
Grammar
1)b.talk
2)b.do you think
3)a.have been doing
4)c.weighs
5)b.is your grandmother living
6)b.we aren't staying
7)d.always
8)cis always freaking out
9)c.we have ever eaten
10)a.i just have had
11)a.is examining
12)a.is he going
13)a.have you studied
14)d.have told