bài 4: tìm và sửa lỗi sai 1. my sister has taken part in swimming competition at school last week and wins the third prize 2. the loger book i read is the Prison Diary of Ho Chi Minh 3. Singapore is cleanest city in the world 4. it doesn"t rain since last week 5. i have never seen a such big flower 6. it spent a long time to travel to the skiing resort but in the end we got there 7. have she finished her homework yet? 8. people in Viet Nam are very friendly but good-hearted 9. we must be well-prepared before climb Mount Fansipan 10. which country is Brazil in?

1. my sister has taken part in swimming competition at school last week and wins the third prize

=> won

2. the loger book i read is the Prison Diary of Ho Chi Minh

=> longest

3. Singapore is cleanest city in the world

=> the cleanest

4. it doesn"t rain since last week

=> hasn't rained

5. i have never seen a such big flower

=> 

6. it spent a long time to travel to the skiing resort but in the end we got there

=>traveling

7. have she finished her homework yet?

=> has

8. people in Viet Nam are very friendly but good-hearted

=> and

9. we must be well-prepared before climb Mount Fansipan

=> climbing

10. which country is Brazil in?