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now and then at the moment in a word as a consequence
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All rivers run into sea Every day is not Sunday Better late than never Practice make s perfect
must；must had to；have to had to； must have to；must
With Besides As for As to
The hard, the good The harder, the better The hardest, the best The harder, the good
hard; hard hardly; hardly hardly; hard hard; hardly
an; hard a; hard an; hardly a; hardly
an; hard a; hard an; hardly a; hardly
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