16. People believed (that) science and technology were the keys to develop the country.
→ S1 + believed (that) + S2 + V(lùi thì)
17. Our teacher said (that) we had to wear uniform next Monday.
→ S1 + said (that) + S2 + V(lùi thì)
18. The boy said that he had seen the alien the day before when he had been going out with his friends.
19. My friend told me (that) he had just received a birthday gift from his mother.
→ S1 + told + O (that) + S2 + V(lùi thì)
20. She said the story about that had happened long before
Bạn học tốt ~
# Yumi