a, She has been heard to sing this song several times. ( bị động với từ chỉ giác quan, S + be( chia theo thì ở chủ động) + Ved/V3+toV/Ving by sb)

b, He was seen to steal your car.( như a)

c, They are being watched to work by the teacher. ( bị động ht tiếp diễn: S +is/are/am+being +Ved/V3 by sb)

d, The children aren't made to work hard. (bị động của make: S+be ( theo thì ở chủ động)+Ved/V3  to smt by sb)

e, He was made to work all day. ( như d)

f, The woman was seen putting the jewelry in her bag by the detective. ( như a)

g, The hostage was made to lie down by the terrorists. ( như d)

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a. She has been heard to sing this song several times. 

b. He was seen to steal your car.

c. They are being watched to work.

d. The children are not made to work hard.

e. He was made to work all day.

f. The woman was seen putting the jewelry in her bag by the detective.

g. The hostage was made to lie down by the terrorists.