REPEAT语句首先执行语句，然后判断条件是否为真，倘若为真则继续循环。
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conversation 1
A. Onthephone.
B. Inthestreet.
C. theman'soffice.
D. inthewoman'soffice.
conversation 1
A. Theydidn'tarriveontime.
B. Theywereallmoldyandeatenbybugs.
C. 50%ofthemoldymushroomswereeatenbybugs.
D. Somewerehalf-eatenbybugsand20%weremoldy.
conversation 1
A. Itwasnotauthoritativeandthesurveyresultisobscure.
B. Themushroomswerenotcompletelymoldybeforepacking.
C. Theexternalconditionsofgoodsatthetimeofsurveywereallgood.
D. The mushrooms were not up to the standard for export.
conversation 1
Arandomselectionof20%themushrooms.
B. Athoroughcheckofalthemushrooms.
C. Full compensationforanyloss.
D. Freefreight.
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