根据下列句子语境及所给汉语注释，横线上写出空缺处各单词或词组的正确形式。 小题1:The police drew a ________ (结论) that the accident had been caused by human error. 小题2:_______(对折)the letter in two before putting it in the envelope. 小题3:Teenagers need adults to ________ (引导) them. 小题4:I ________ (申请) to four foreign universities and was accepted by all of them. 小题5:Sally made a deep ________ (印象) on us with both her skills and personality. 小题6:Please ________ (通知) us of the latest developments in medicine. 小题7:由于缺钱，他没有上大学。 He didn’t enter university because of ______  ______ money. 小题8:图书管理员把还回的图书放回原处。 The librarian put the returned book ______  ______ . 小题9:警方指控他谋杀。 He was ______  ______ murder by the police. 小题10:诗人是在最后期限的前几天完成这这首诗的。 The poet finished the poem several days ______  ______ the deadline. 小题11:吵闹声不绝于耳，我根本无法集中精神学习。 I can’t ______  ______  my studies with that noise going on.