`1)` Jimmy asked me where she had met him.
`2)` Jim asked his teacher when he should register for the new course on Chinese.
`->` Cấu trúc câu tường thuật dạng WH-questions:
S + asked + O + wh-word + S + V(lùi thì)
`3)` Joana couldn’t decide when to start her journey.
`->` Sau từ để hỏi (what, where, when, why, how, ...) + to V
`4)` The doctor said I had to stay in bed until the following Monday.
`->` Cấu trúc câu tường thuật:
S + said + S + V(lùi thì)
* Must `->` had to
* Next Monday `->` the following Monday.