I left that class _____ never to underachieve again.选determined 不选 decided 请问为什么?determined 和 decided 都是分词做伴随状语啊!选determined 不选 decided 请问为什么?还有就是 如果determined 换成determining 句意

It was nearly class time ______ I remembered that I had left my textbooks at home.填when还是that? I realized that I __ my purse in that bus.应填left 填lost是否可以? Just before the English class,Isuddenly realized that I ( ) myEnglish testbooks at home.a.left b.had left c.forgot d.had forgotten When I walked into my history class,I realized that I left my homework h___.I walked up to my histo给我填空答案When I walked into my history class,I realized that I left my homework h___.I walked up to my history teacher and s___,Sorry,Mr.Hand Just before the English class,I suddenly realized that I ____ my English textbook at homeA forget B had forgrotten Cleft D had left 选择题：I am ashamed ,sir,that I wasted the many hours __ I should have studied in class.A.while B.asC.once D.when选D , 为什么? This morning I went to work in such a hurry that I __ the key to my office at home.a:forgot b:left c:missed d:lost I am __ __ __(在某方面有特长)English in my class. Just before the maths class,I__realized that I had left my maths textbook at home.A.loudly B.easily C.suuddenly D.happily选哪个?为什么? To prove that I left footprints To prove that I left footprints是什么意思? The book is so dear that i can't buy it(变简单句)1：__ __ __ __ __ __ __ __ __2__ __ __ __ __ __ __ __ __ -I'm sorry for breaking your class.-__. It was __ that i found my books.是选in the place that i had left them还是where i had left them为什我知道这是强调句，答案where i had left them错在哪里 Thr teacher told Sally that she mustn't talk in class(改为同义句）The teacher asked Sally __ __ __ __ class I don't think there will be many students left in the class,__,because the condintions are not fit for studying.A if any B if possile C if ever D if so I __(讨厌）that song I like books that __ great stories.