用现在进行时的被动语态改写下列句子1.They are building a computer for the students.2.The parents are taking good care of their test-tube baby.3.Some scientists are studying human cloning.4.They are discussing this question at the meeting.5.The teacher is giving the test in the next room.

用现在进行时的被动语态改写下列句子
1.They are building a computer for the students.2.The parents are taking good care of their test-tube baby.3.Some scientists are studying human cloning.4.They are discussing this question at the meeting.5.The teacher is giving the test in the next room.