【例句】 1. She said that she(would /will) leave a note on the desk 2. He wants to know (if/ whether )you are a doctor 3. Do you know when he(bought/buy)this pencil-box? 4. Teresa told her son that leaves(turn/turned) yellow in autumn.【例句】 1. She said that she (would/will) leave a note on the desk. 2. He wants to know (if/ whether )you are a doctor. 3. Do you know when he (bought/buy) this pencil-box? 4. Teresa told her son that leaves (turn/turned) yellow in autumn