用所给单词的适当形式填空
I don't think he is telling the ________ (true).
In less than two days, 100,000 pieces of the room were put inside twenty-seven ________ (wood) boxes.
How did he make so much money ________ (remain) a mystery.
John got into the house ________ (secret).
The Amber Room feels as ________ (hard) as stone, it easily melts when ________ (heat).
I ________ (cannot go) out that night, for I ________ (promise) to wait for an old friend of mine at home.
It was quite late at night. Tom ________ (read) when he ________ (hear) a knock at the door.
I ________ (let) you have the book as soon as I ________ (finish) it.
Later, Catherine Ⅱ told her ________ (art) to add more details to its design.
Everyone agreed that it was the ________ (good) and ________ (big) work of amber art ever made.