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19．-There is some beef in the fridge，______？
-Yes，there is．（　�。�

A．

is there

B．

isn't there

C．

has there

D．

hasn't there

分析 --冰箱里有一些牛肉，不是嗎？
--是的，有一些．

解答答案：B 考查反意疑問句．反義疑問句主要形式：陳述部分肯定式+疑問部分否定式；陳述部分否定式+疑問部分肯定式．本題前面是肯定的，主語是there，原句的系動詞是is，所以要用否定的，選擇B．

點評掌握反義疑問句主要形式：陳述部分肯定式+疑問部分否定式；陳述部分否定式+疑問部分肯定式．是解題的關鍵．

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