The place ________ interested me most was the Children's Palace.
It is such a difficult problem _______ no one can work out.
–Well, where did you spend your night that day? --At __________.
–Have you seen the film? --Yes. I __________ it three times when I was in Tokyo.
Failure is the mother of success. ______ your courage and you’ll succeed.
When she came several days later, she found that all things still ______ where she had ________ them.