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take part in take place take over take in
Due to So long as As Despite
Cn=(Im，Ti) Cn=f(Im，Bj) Cn=f(Mr，Ti，Bj) Cn=f(Im，Mr，Ti，Bj)
worked was working have worked had worked
morning midday evening midnight
arrive arrived are arriving will arrive
arrive arrived are arriving will arrive
a; that a; when the; that the; when
for holiday on holiday in a holiday to holiday
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