After he joined the golf club.He has_______(joined in /taken part in)a number of competitions选哪个,详细说明理由

After he ____ the golf club,he has ___ a number of competitions.A took part in；taken part inB joined in；joined inC joined；joinedD joined；taken part in After he joined the golf club.He has_______(joined in /taken part in)a number of competitions选哪个,详细说明理由 The table new employee got---soon after he joined the companyA.promotion b.promotig C.promoted Dto be promoted he joined the army last year He is a ____ .He joined the army last year. John joined the army two years ago等于___two years since he joined the army 英语选择题b为什么不行?It is 3 years _c___ he joined the army.A.before B.after C.since D.when It is three years since he joined the army.为什么是用joined而不是用have joined He ________ the army for ten years.A.has joined B.has joined in C.joined D.has been in He joined the football club 为什么加the he joined the volunteers from all over the country是什么意思 EG：He ___ the club last month.A:joined B:joined in He the singing competitionlast year.(took part in ,joined in;joined)怎么区分 he joined the army last year 改成现在完成时 he joined the army last year 改成现在完成时 Elias trusted Mandela and he joined the ANC Youth League. He joined the party in 1999.(同义句转换） It is said _______ he has joined the army.