是he was "a" once outstanding man还是he was "an" once ...这里应该用a还是用an

是he was a once outstanding man还是he was an once ...这里应该用a还是用an once后面时态.１、Once he said that,I know he was lying.2.Once you have make a promise,you must carry it out.两句都对?once后面究竟完成时态还是一般时? When they suggested the plan ___at once,the director smiled,which suggest that he ___with us.A.was carried out,agree B.be carried out,agreed是选哪一个? ___professor as he was,he couldn' t work out the problem at once.用什么冠词 he was once a cook and a tree He was heard() out (go)When I was reading a book.he was heard () out.(go) he once was a true love of mine.翻译中文 Once a Frenchman went to England.He knew a ___ English.One day when he was sitting by the ____ of a restaurant and having lunch,he ____ a voiceLook out!So he put his head out of the window to find out ___ was happening outside.Just then a basin of he was up at once then Once a Frenchman got to England.He knew only a little English.One day when he was sitting by the window of a restaurant and having lunch,he heard a voice,“Look out!” so he put his head out of the window to find out what was going on outside. 帮忙写首字母填空..Once a Frenchman go to England.He knew a l (1) English.One day when he was sitting by the t (2) of a restaurant and having lunch,he h (3) a voice “Look out!” So he put his head o (4) of the window to find out w (5) was h Once a Frenchman go to England.He knew a l (1) English.One day when he was sitting by the t (2) of a restaurant and having lunch,he h (3) a voice “Look out!” So he put his head o (4) of the window to find out w (5) was happening outside.Just then He was once a young person as I am now前面是过去式为什么后半句能用现在时 英语翻译文章开头是 There was once a little boy who always had an excuse whenever he did something wrong.- 英语翻译There was once a man who couldn’t sleep well because he was afraid that there was a stranger under his bed.He thought that as soon as he went to sleep,the stranger would come out from under the bed and rob him.He was worried that the st A man once had a dream about the B lack F orest in Germany.A man once had a dream about the Black Forest in Germany.In his dream he was walking in the forest when two men ran out and tried to throw him to the ground.He ran off as fast as he could,but 翻译句子：Once he heard a song in Rome when he was fourteen. 有一道完型填空,顺便再说下原因.Once a Frenchman go to England.He knew only __1__English.One day ,When he was __2___ by the window of a restaurant and having lunch,he __3__ a voice（声音）,“Look out ” So he put his head out of the