Tìm lỗi sai, giải thích và sửa lại cho đúng: 1 Will you free tomorrow evening? 2 They aren't much students in my class 3 Nam lives at Tran Hung Dao street 4 Her date of birth is on twelve May 5 Hoa doesn't have some friends in Hanoi 6 We can get our books in recess 7 It's short work from here to the supermarket 8 Life in the city is moer quieter, besides, people are very friendly.