---Believe it or not, I have met him before.---No kidding? ______ you’ve never mentioned it?
Let Tom play with your toys as well, Clare—you must learn to_______.
John asked me _______ to visit his uncle’s farm with him.
The policeman warned the driver _______ so carelessly.
When we visited Hainan again ten years later, we found it changed so much that we could hardly _______ it.
—Your food is very delicious! —_______.