1. "you had to work hard " she said to us
=>She advise us to work hard
2. "what will you do tomorrow morning?" he said to me
=> he asked me what I would do the next morning
3. we were late for school because of the heavy rain
=>because it rained heavily , we were late for school
4. my mother often cleans the floor every afternoon
=>the floor is often cleaned by my mother every afternoon
5. "i'm working in the restaurant now" she said
=>she said that she was working in the restaurant then
6. they started to work for that company when they left school
=>they have worked for that company since they left school
7. people built a new hospital near our house 3 months ago
=>a new hospital was built near our house 3 months ago
8. i don't have enough money, so i can't buy that beatiful shirt
=>if i had enough money , i could buy that beautiful shirt
9. my parents bought me a new computer. it is very expensive
=>my parents bought me an expensive new computer
10. unless/she/try/her best/improve/her study/not/pass/the exam
=> unless she tries her best to improve her study , she won't pass the exam