"I will visit my parents next Sunday," said Trong.
→ Trong told me that he would visit his parents the following Sunday.

"I have worked in a big city for two years," said Lan.
→ Lan said that she had worked in a big city for two years.

"We like Vietnamese food very much," they said.
→ They said that they liked Vietnamese food very much.

"They didn't see the man last night," he said.
→ He said that they hadn't seen the man the night before.

"I am listening to the radio now," she said.
→ She said that she was listening to the radio at that moment.

"What are you doing now?" he asked.
→ He asked me what I was doing at that moment.

"How old are you?" she asked me.
→ She asked me how old I was.

"Where did you go last night?" she said.
→ She asked me where I had gone the night before.