I. rewrite or combine the sentences
1. tet is the most important festival in viet nam. most Vietnamese return home for tet. (therefore)
2. all the students love the principal .he is very kind (because)
3. Mr lan was very busy ; however, he spent the whole day at the La Mat village festival.-> although
4. this book is different from mine -> this book is not
giúp mk nha mn mk đg cần gấp