Răspuns:
3.It must have been very expensive
4.nu am still scuze:(
5.I must have leaved it in the restaurant last night
6.It can't have been easy for her
7.He must have waited for somebody
8.she can't have understood what I said
9.I must have forgotten to lock it
10.They must have had a party
11.The driver can't have seen it
12.He can't have worn them too much