Change the following sentences into Passive
1.Students often refer to these dictionaries.
2.My granny made me do the bed.
3.They say he is a nice chap.
4.The teacher had just explaned a new rule to us.
5.Everybody lost sight of the boat in the fog.

1 These dictionaries are often referred to by students.2 I was made to do the bed by my granny.3 He is said to be a nice chap.4 A new rule had just been explained to us by the teacher.Или We had just been explained a new rule by the teacher.5 Sight of the boat was lost in the fog.