第1个回答 2012-01-12
join
join in
take part in
compete in
turn up
attend in
present本回答被提问者采纳
第2个回答 2012-01-12
take part in;join in;join; participate;attend;
第3个回答 2012-01-12
join in
take part in
attend,
第4个回答 2012-01-12
join
join in
take part in
attend
play part in