1.D
2.B
3.C
4.A
5.C
6.C
II)
1.has become
2.have been working
3.have been working
III)
1.He apologized the boy for behaving rudely
2.The employees were fined for having broken the rules of the company
3.My son denied for having scratched the television screen.
VOTE 5*+CẢM ƠN +CTLHN