用方框中所给单词的适当形式填空，每词仅用一次。
throw, knife, excite, die, difficult
There is a fork and five _______ on the table.
The children were ________ about opening their gifts.
I think that disabled person may have __________ in using his arms.
He made a decision that meant life and ______.
Stop _______ stones at that window.