这句话里的reducing为什么要加ing?Once opened,the Northeast passage will greatly change the global setup of marine tranport ,significantly reducing the shipping distances between China and Europe as well as North America.

这句话里的reducing为什么要加ing?Once opened,the Northeast passage will greatly change the global setup of marine tranport ,significantly reducing the shipping distances between China and Europe as well as North America. I have just moved to a house in bridge street.这句话里moved 后面为什么要加to? In the struggle,the strap broke and,with the bag in their possession.with在这句话里翻译为什么?还有and后为什么要加逗号? 德语中的一句话 In Weimar,wo er einen großen Teil seines Lebens verbrachte这句话里的Leben为什么要s?sein为什么要用第二格?是因为verbracht后加第二格吗? i went there (in )the other day要不要加in这句话里要不要介词in 在shape这行中有reducing ,这里的reducing The Smiths will leave for China in the spring of 2012.这句话的spring前为什么要加the. I have just moved to a house in Bridge Street.为什么要加HAVE这句话为什么要加HAVE? You need’t be so rude about it.这句话里为什么要加be呢? It must be terrible to be grown up!这句话里为什么要加be呢? 밤 열두시 这句话里열是什么意思?晚上两点 为什么要加열 It is unusual for him to be late.这句话里为什么要加be呢? how mang rulers are there in the pencilbox这句话对么,为什么要加are there They are in first place.这句话序数词前要不要加the?说说为什么 I visited museum and sat in public gardens.这句话里面为什么要加sat呢? “How many days are there in a week?”这句话为什么要加“are there”? 这句话为什么要在the way前面加on?We stopped in Sacramento the way. 第三人称单数动词要加s但为什么这句话里的动词不用加?Can she type this letter for me?she是第三人称但为什么其后面的动词type不用加S?