viet lai cau:
1. How long have they waited for the doctor?
............How long has the doctor been waited for?..........................................................
2. Someone has sent me the flowers
.........I have been sent the flowers.................................................
.......The flowers have been sent to me..............................................
1. How long have they waited for the doctor?
How long has the doctor been waited for?
2. Someone has sent me the flowers
I have been sent the flowers
The flowers have been sent to me.