Lời giải:
Bài 65 trang 34 - Rút gọn rồi so sánh
Bài 67 trang 36 - Tính
I'm David Smith, husband and father , I love Photography,travel and nature. I'm working as a writer and blogger with experience of 5 years until now.
Sign up for free and be the first to get notified about new posts.
