"You should study hard." She/ say..
She said (that) I should study hard.
"I'll definitely be there at 8 p.m." He/...
He promised to be there at 8 p.m.
"By the way, I live in Australia." He/
He mentioned that he lived in Australia./He mentioned living in Australia.
"Would you like to have dinner with me, Anna?" He/...
He invited Anna to have dinner with him.
"I'm getting married!" She/
She announced that she was getting married.
"It's true. I stole the cookie from the cookie jar." She/...
She admitted stealing the cookie from the cookie jar./She admitted that she had stolen the cookie from the cookie jar.
"You should come to the party with me." He/
He persuaded me to go to the party with him./ He persuaded me that I should go to the party with him.
"I'm sorry I was late." She/...
She apologised for being late.
"I want to see the manager!" He/
He insisted on seeing the manager./ He insisted that he wanted to see the manager.
"You got really great exam results!" She/...
She congratulated me on getting great exam results.
"You always wear nice clothes." He/
He complimented me on (always) wearing nice clothes.