Ex6 ,Rewrite the sentences using “wh-word + to-infinitive”. 1. I don’t know what I should do. 2. Could you tell me where I can find more information about this? 3. He’s not sure when he should start the computer. 4. They wondered how they could deal with this problem. 5. I can’t decide whether I should answer his letter. 6. Tell me how I can improve my pronunciation of English. 7. He has no idea who he should call for help in case of emergency. 8. He asked his father when he should leave for the bus tomorrow. 9. She wondered how she can tell this news to her parents. 10. My mother couldn’t decide how much money she should spend on Tet holiday.