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**Exercise 1: Chia dạng đúng của động từ trong ngoặc**

1. When I (come) ________, she was cleaning the door.
2. When I (come) ________, she will be cleaning the door.
3. When he went home, his mother (cook) ________ dinner, so he took off his coat to help her.
4. When he went home, his mother (cook) ________. so he had a delicious meal.
5. When he went home, he (cook) ________ because his wife were busy.
6. When he goes home, he (cook) ________ dinner because he wants to make his wife surprised.
7. When he goes home, his mother (cook) ________ because she always wants her son to have a delicious meal after a hard work day.
8. When I moved here, I (live) ________ in a remote area for 5 years.
9. When she receives the letter, she (call) ________ you.
10. When I was young, I (harbor) ________ the dream of a famous doctor.
11. When I grow up, I (get) ________ married to you.
12. When he grew up, he (join) ________ the army.
13. When I see him, I (remind) ________ him to call you.
14. When I saw him, I (remind) ________ him to call you.