He had ______ in finding Mr. Green’s house.
--- Are you in a hurry? --- No, in fact, I’ve got plenty of time. I _______ wait.
You can’t appreciate happiness _______ you have known sadness too.
We shouldn't have come north for Christmas vacation. If we _______, we wouldn't be stuck in the snow right now.
The lack of movement caused the player’s muscles to _______ and he might never play the sport again.
With the victory at the French Open, Li Na has reached NO.4 in the world, ______ the previous Asian Record.