1.Before Mary came here,she_____(study) inAustralia. 2.As nothing could_______(do)at that moment.

3.Itwasthethirldtimethatthegirl_______(invent)himtoherparty.... 3.It was the thirld time that the girl_______(invent)himto her party. 展开
风筗承喏5597
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1.Before Mary came here,she_had_studied___(study) inAustralia.
2.As nothing could__be done_____(do)at that moment.
3.It was the thirld time that the girl__had invented_____(invent)him to her party.
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请解释一下第2、3题
追答
第二题是被动语态,事情被做
第三题it was time that sb. had done句型
瑾琳CiCi
2011-12-11
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1 had studied
2 be done
3 invented
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