搜题

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王老师:19139051760(拨打)
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第1题

He begato work there __________ .
·ohis fifty
·at age of fifty
·whehe fifty
·ihis fifties
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第2题

There are __________ months ia year. December is the __________ month of the year.
·twelve; twelve
·twelve; twelft
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第3题

During __________ century, the world populatiohas already reached 6 billion.
·twenty
·the twentieth
·twentieth<
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第4题

About __________ of the books iour school library are writteiChinese.
·four-fifth
·four-fifths
·fourth-fifths
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