.Mary is a(n) _______ customer, so the waiter knows her likes and dislikes.
Tom was the second to reach the top of the mountain, Mike _______ the first.
This painting is so valuable that it is rather difficult to calculate _______ its price would be if the museum _______ to sell it.
While _______ driver’s licenses in China, new car drivers will have to fill out a body part donation form, which is _______ for some drivers-to-be.
The earth could be younger and took more than three times longer to form than _______ thought, according to a new study.
Avril Lavigne _______ to be a rock superstar because she ______ rock music even in her childhood.