Choose the suitable idiom for each situation.

Choose the correct option.

My dad let me go to London for a month on a school exchange programme. What did he give me? [A green light|A black sheep|A blue moon|A red hand]
My grandma was on the train when she noticed that a man was trying to open her bag. She started shouting, and he ran away. She caught him... [red-handed.|yellow-legged.|white-headed.|green-lighted.]
I told the writer that his story was very interesting. In fact, I didn't like it at all. What did I tell him? [A green light|A red line|A black tie|A white lie]