问题描述：
在线等哦 英语填空
By the time,she _________(reach)the age of 20 ,she will have visited four countries in europe.
the second half of twentieth century saw,a American _________(experience)great changes.
travelling in the USA, you will find citys and towns,________(fill) with restaurants serving international cookies.
第二题experience不对的,我就是错的
By the time,she _________(reach)the age of 20 ,she will have visited four countries in europe.
the second half of twentieth century saw,a American _________(experience)great changes.
travelling in the USA, you will find citys and towns,________(fill) with restaurants serving international cookies.
第二题experience不对的,我就是错的
问题解答：
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