viết lại theo gợi ý: How often do you go to school? Six days a week
viết lại theo gợi ý
1. how often do you go to school ? Six days a week
\(\rightarrow\) how many ===--...
2. the last time we saw our friendswas ten months ago
\(\rightarrow\) we have not ====--
3. I did not go to school because I am ill
\(\rightarrow\) because of====--..