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
小题1:There is a fork and five _______ on the table.
小题2:The children were ________ about opening their gifts.
小题3:I think that disabled person may have __________ in using his arms.
小题4:He made a decision that meant life and ______.
小题5:Stop _______ stones at that window.