Question

Hộ mik mấy bài này vs ạ Mai mik phải thi rồi😢

Answer 1

2 A

3 B

4 B

IV

1 don't start

2 is he doing

3 have visited

4 took

V

1 development

2 unpolluted

3 explorer

4 communication

VI

1 D

2 C

3 C

4 D