Luyện ngữ pháp - Destination B1
Unit 19: Grammar - Modals 1: ability, permission, advice



STTTên taskSố câu hỏi
1
1
2
1
3
1
4
1
5
16
6
6
7
6
8
5
9
10
10
5


Review 6: Units 16,17 and 18Unit 20: Grammar - Modals 2: obligation, probability, possibility