Three months __ since he __ hereA have passed;leftB has passed;leftC has past;has leftD has passed;was away

I returned from abroad about three months ago(对about three months提问）__ __ you__ from abroad? first three months Only three more months to three months later中文是什么意思 是three-month还是 three-months对 Three months __ since he __ hereA have passed;leftB has passed;leftC has past;has leftD has passed;was away plan to的同义词,三空!They plan to stay in the USA for three months.(保持原句意思）They__ __ __stay in the USA for three months. David __ Shanghai for more than three months.A,came B,has been to C,has been in D,has come to l have met him three months agol met him three months ago改成I have met him three months before Her baby is only ( ).He can't speak .A、three-month-old B、three months old.选哪个Her baby is only ( ).He can't speak .A、three-month-old B、three months old.选哪个我觉得是A,可答案是B,为什么?（ ）The girls don't go to school __ for three months用什么提问 three months是单数还是复数 three days months , weeks叫什么词 I have studied English for three months. about three and a half months ago in three months提问用什么 he was in school f____only three months Know you for three months是什么意思