0 'Honestly, please believe me, I really didn't know she was a drug dealer.' The TV presenter suggested/claimed he hadn't known (not know) that the woman had been a drug dealer. He begged the court to believe him.

1 'In our opinion, the show isn't suitable for children.' When a journalist asked why the show had been banned, the members of the panel added / replied that, ...in opinion, it.... (not be) suitable for children.

2 'Don't tell everyone, but maybe you should wait until next week. There's probably going to be a sale here." I was in the electrical store a few weeks ago and the assistant winked at me and replied / suggested that the ....week there... (probably/be) a sale

3 'Leo can't have taken the car today. My car keys are still here.' I was at Maggie's house last week when her car was stolen. I added/suggested that maybe Leo had takem it, but she said Leo... (not take) the car... day because... keys were​