chuyển các câu sau thành câu bị động
12) thye greens are going to paint this house and these cars for Christmas Day
13) ann had fed the cats before she went to the cinema
14) the students have discussed the pollution problems since last week
15) have you thieves stolen the most valuable painting in the national museum
giúp mk vs ah mk cần gấp
12) the greens are going to paint this house and these cars for Christmas Day
=> This house and these cars are going to be painted for Christmas Day by the Green
13) ann had fed the cats before she went to the cinema
=> The cats had been fed by Ann before she went to the cinema
14) the students have discussed the pollution problems since last week
The pollutions problems have been dicussed by the students since last week
15) have you thieves stolen the most valuable painting in the national museum
Has the most valuable painting in the national museum been stolen by the thieves