Keep going, continue! Never stop, never ...!
give up
Jack is 45 years old, but he often ________ ________ to the time he was just a kid.
goes back
What happened to the airplane?
blow up
Look what I found. I've just _______ ________ the wallet.
came across
Yesterday our teacher showed us burning water. I _____________ (learned, understood) that it was a trick.
found out