`1.` Don't you do your homework carefully ?
-> Isn't your homework done carefully?
`2.` His sister made some cakes for him yesterday.
-> Some cakes were made for him by his sister yesterday.
He was made some cakes by his sister yesterday.
`3.` Couldn't you answer this question immediately?
-> Could this question be answered immediately
`4.` Hasn't he told you the truth yet?
-> Haven't you been told the truth yet?
-> Has the truth been told you by him yet?
`5.` The company will invest 2 million dollars to modernize its factories in VN.
-> 2 Million dollars will be invested by the company to modernize its factories in VN.
`6.` Cousin Quan gives me some circus tickets every year.
-> I am given some circus tickets by Cousin Quan every year.
`7.` Nobody designed these symbols to her ao dai.
-> These symbols weren't designed to her ao dai.
-> Her ao dai wasn't designed these symbol.
`8.` Everyone mustn't use the computer here after 5pm.
-> The computer musn't be used here after 5pm.
`9.` Does Lan have to type those reports right now?
-> Do those reports have to be typed right now.
`10.`They here usually lit their houses with candles long ago.
-> Their houses were usually lit with candles long ago.

1. Isn't your homework done carefully?
2Some cakes were made for him by his sister yesterday.
He was made some cakes by his sister yesterday.
3. Could this question be answered immediately
4. Haven't you been told the truth yet?
 Has the truth been told you by him yet?
5.Two Million dollars will be invested by the company to modernize its factories in vietnam
6. I am given some circus tickets by Cousin Quan every year.
7.These symbols weren't designed to her ao dai.
 Her ao dai wasn't designed these symbol.
8.The computer musn't be used here after 5pm.
9.Do those reports have to be typed right now.
10.Their houses were usually lit with candles long ago.