单项选择题

A.before
B.to
C.with
D.from
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单项选择题
A.encounteredB.encounteringC.to encounterD.encounters
A.encountered
B.encountering
C.to encounter
D.encounters
单项选择题
A.haveB.to haveC.hasD.to has
A.have
B.to have
C.has
D.to has
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