I have been skating _______ nine o’clock.
The presentation of the Film Festival will be covered live tonight. It’s worth ________.
It’s so silly ________ people to buy and store so much salt. It’s necessary ________ them to learn more about salt.
He ________ whether he will be able to win the tennis match. So he feels very nervous.
Some of the CDs belong to her, while the rest are ________.
This is _______ usual way of solving the problem. Can you think of ________ unusual way?