there was a time whentime 前面为什么可以加一个a 它不是不可数名词么

there was a time when的用法 there was/be a time +定语从句 there was a time when能否写成 once there was a time when 1.There is no ____ on Mars,____ is known to all.A.life...it B.lives...which C.lives.as D.life...as2.It was an exciting movement for these football fans this year,___for the first time in years their team won the world cup.A.that B.while C.which D.whe there was a farmer a long time ago 否定句 Once upon a time,there was a pretty ,fresh a long time ago,there was a queen.翻译 there was a time Mathilde had a hard life改错 there was a time 后面加when还是while Once upon a time,there was an emperor... There was a time后面用that还是when? Once Upon A Time There Was An Ocean 歌词 用 there was a time when……造句 This was a time----there were still slaves i Once upon a time, there was a person who has loved you for a long time. this was at a time when there was no radios...句子成分分析 The last time I was there _______ in 2003.A.is B.was C.were long a was time there ago a farmer ,long a was time there ago a farmer , . 这些符号,单词怎样才能组成一个句子