Public speaking experts stress that successful______of a speech requires a great deal of skill and preparation.

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问题 Public speaking experts stress that successful______of a speech requires a great deal of skill and preparation.

选项 A、deliver
B、delivery
C、deliverable
D、delivered

答案B

解析单词形态：名词1．这是一道单词形态题。选项均为deliver的不同形式。2．空格内应填入一个名词，既能被形容词successful修饰，又能接后面的介词of。3．A选项为动词、C选项为形容词、D选项为过去分词。

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