B. The old man warned the children not to go near the house because there was a gas leak. 

C. The old man threatened the children not to go near the house because there was a gas leak. 

B. The flight attendant advised the passengers to fasten their seatbelts because they had to make a compulsory landing. 

C. The flight attendant required the passenger to fasten their seatbelts because they had to make a compulsory landing. 

B. Diana advised Jack to stop asking her such questions as she did not want to tell lies. 

C. Diana asked Jack stop asking her such questions as she did not want to tell lies. 

B. She asked Alison how often does she go to the cinema. 

C. She asked Alison how often she had gone to the cinema. 

C. I asked the woman in front of me to take off her hat. 

B. The travel agent asks me my name and my address. 

C. The travel agent wanted to know your name and your address. 

B. She asked me that which buses went to downtown. 

C. She wondered that which buses go to downtown. 

B. Tom’s mother ordered him to take better care of his health. 

C. Tom’s mother required him to take better care of his health. 

B. Molly said that she would go crazy if she studied chemistry all day. 

C. Molly said that she will go crazy if she studied chemistry all day. 

B. My father suggested to go for a walk as it was not raining anymore. 

C. My father suggested us going for a walk as it was not raining anymore. 

C. Tom asked Janet why she had kept staring at him. 

B. Tom suggested to have dinner with him that day. 

C. Tom invited me to have dinner with him that day. 

B. My sister told to me not turn off the light as she was studying. 

C. My sister told me not to turn off the light as she was studying. 

B. Ann asked Kate to book a table. 

C. Ann suggested Kate booking a table. 

B. He said that he always encourages his students to have a gap year before going to university. 

C. He said that he had always encouraged his students to have a gap year before going to university. 

B. The other passenger offered to move my case as it was blocking the door. 

C. The other passenger suggested moving my case as it was blocking the door. 

B. He asked Melda what time she will get up tomorrow morning. 

C. He asked Melda what time she would get up tomorrow morning. 

B. Rita threatened to pay me back on Sunday.  

C. Rita suggested paying me back on Sunday. 

B. My son said that I would have plenty of time because I didn't have to go to school the next day. 

C. My son told that I would have plenty of time because I didn't have to go to school the next day.