Task 1 :
1. tonight
2. month
3. wash
4. good luck
5. English
Task 2 :
1. Tet festival in Viet Nam is a big .
2. We decorate the house before Tet .
3. They watch displays fireworks in the Eve New's year .
4. What do you do at Christmas ?
5. Children get a lot of presents on Children's Day .
6. Teacher's Day is of twentieth on November .
Task 3 :
1. Yes
2. No
3. Yes
4. No
5. Yes
6. No
Task 4 :
1. b
2. a
3. c
4. d
5. c