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take part operate join to participate in
attend join take part participate in
operate direct manage conduct
/；a /； the the； the the； a
As good as As long as As many as As well as
/...a /...the thE.the thE.a
present compare announce remark
不填 ; a 不填; the the; the the; a
to take， depending taking， depending to have taken， to depend having taken， having depended
join join in participate in participate
/;a /;the the; the the ;a
attend join take part participate in
不填; a 不填; the the; the the; a
one after another one another the other one by one
speak to speak speaking spoken
are encouraged have encouraged are encouraging had been encouraged
take part operate join to participate in
were encouraged are encouraged encourage encouraged
不填；a 不填；the the；the the；a
of themselves of their own for their own on their own
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