Passive voice:
6. Santa Clause gives children presents on Chrismas Eve.
children are given presents by Santa Clause on Chrismas Eve.
7. Mary's parents have sent her some money.
Mary has been sent some money by her parents
8. Each competitor must take a bottle on the river bank.
a bottle must be taken on the river bank by Each competitor
9. They were building this monument at that time.
this monument was being built at that time.
10. They delayed the football match!
the football match was delayed!
Passive voice:
6. Santa Clause gives children presents on Chrismas Eve.
children were given presents by santa clause on chrismas eve.
7. Mary's parents have sent her some money.
mary has been sent money by her parents,
8. Each competitor must take a bottle on the river bank.
a bottle must be taken on the river bank by each competitor.
9. They were building this monument at that time.
this monument was being built at that time.
10. They delayed the football match!
the football match was delayed .
6 .presents were given to children by santa clause on chrismas eve