The letters PTO__________parent-teacher organization.

The letters PTO__________parent-teacher organization.A.stand for B.call for C.h

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Which 'of the following is TRUE of cell phone users?

Which 'of the following is TRUE of cell phone users?A.They must accept the aler

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According to this passage, working-class parents are more l

According to this passage, working-class parents are more likely than middle-cl

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第22题应选( )

第22题应选( )A.falls down B.breaks out C.wakes up D.takes place

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We are all___________at his___________success.

We are all___________at his___________success.A.surprised ; surprised B.surpris

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