change into passive voice!
1.rahmat has taken a mandarin course= a mandarin course has been taken by rahmat
2.they translated some old documents last week
= some old documents were translated by them last week
3.the secretary is sending the important emails
= the important emails has been sent by secretary
4.well visit our grandmother next week
= our grandmother will be being visited by us next week
5.we can see many beautiful paintings in the exhibition
= many beautiful paintings can be seen by us in the exhibition
6.they were studying the english lesson when i arrived
= when i arrived they were studied the english lesson