Luyện ngữ pháp - English Grammar in Use - Intermediate
Unit 7: Present perfect 1

STT	Tên task	Số câu hỏi
1	Grammar Explanations and Rules	1
2	Exercises - 7.1	7
3	Exercises - 7.2	5
4	Exercises - 7.3	7
5	Exercises - 7.4	7

Unit 6: Past continuous

Unit 8: Present perfect 2