Answer:
1. I asked who had just dropped a $10 note.
2. She wondered why the price went up so often.
3. Anne wanted to know if I had gotten a work permit.
4. Mary asked if I was interested in advertising.
5. She asked if I would like to join their company.
6. I warned them not to watch late-night horror movies.
7. He advised his client to read the contract before he signed it.
8. I advised him to buy a new car.
Step-by-step explanation:
In reported speech, past tense form of verb is used while in direct speech, present tense form of verb is used. In reported speech, we are reporting what someone has previously said. It is important to note that when direct speech uses past tense, we need not make a change. Direct speech is reporting verbatim what was said.