第19题: [填空题]Proper Preparation Prevents Poor Performance point is that the need to anticipate the obvious first question, which nonetheless often 参考答案:THAT 答案解析:本句中“need”为表语，其后的不定式为表语补足语。如果假设that在这里作关系代词的话，那么 会发现它后面的“句子”只有主语，而没有谓语。所以that肯定不是关系代词。如果假设that是指示代词，会
