阅读下列各小题，根据汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题上的相应题号后。
小题1:__________________ that you may have made the wrong choice?（occur）
你是否曾经想到过也许你做出的是错误的选择？
小题2:The explosions at the Boston Marathon are reported __________________ and over a hundred injuries. (cause)
据报道，波士顿马拉松爆炸事件导致了三人死亡和一百多人受伤。
小题3:He has given us several phone calls, ___________________ his sincerity and determination. (convince)
他给我们打了好多通电话，这让我们相信了他的真诚和决心。
小题4:Before becoming prime minister, Mrs Thatcher ____________________ several cabinet posts. (occupy)
在成为首相之前，撒切尔夫人已出任过好几个内阁职位。
小题5:________________ in the investigation was a great shock for everybody. (confirm)
调查中所证实的事情让每个人大吃一惊。
小题6:Tom opened the door, and there _________________ who he had seen twice. (stand)
汤姆打开门，门口站着一个女孩，他曾见过两次。
小题7:His desire that __________________ actually keeps everybody away from him. (obey)
他想要每个人都顺从他，事实上却使得每个人都远离他。
小题8:It was not until months later _________________ living all alone without family and friends around. (adapt)
直到数月之后他才适应了没有家人和朋友在身边独自生活。
小题9:The more he insisted he was innocent, ________________ believe him. (seem)
他越坚称自己无辜，他们似乎越不相信他。
小题10:In those rough times mistakes, which _______________, were crowding in at the same time and my life was totally messed up. (avoid)
在那些诸事不顺的日子里，本可以避免的错误全都同时发生了，我的生活完全一团糟。
小题1: Has it ever occurred to you
小题2:to have caused 3 deaths
小题3:which convences us of/convincing us of
小题4: had occupied
小题5: What was confirmed
小题6:stood a girl
小题7: everybody (should) obey him
小题8: that he adapted to
小题9:are bound to be
小题10:could have been avoided
题目分析：
小题1:Has it ever occurred to you
本句中的固定句式it occur to sb that…某人突然想起某事；it是形式主语，后面的that引导的是真正的主语。
小题2: to have caused 3 deaths
本句中是固定句式be reporped to do sth据报道做某事；任何后面表示的是已经完成的事情，则使用不定式的完成时to have done。
小题3: which convences us of/convincing us of
本句可以使用convince sb of sth使某人相信某事；可以使用现在分词做定语，也可以使用定语从句做定语修饰名词。
小题4:had occupied
本句主要考查的是时态，根据句意使用过去完成时的形式。
小题5: What was confirmed
本句是主语从句，what在句中做主语，引导主语从句。
小题6:stood a girl
本句中是副词there放在句首，句子的主语是名词，所以使用全部倒装的形式，
小题7: everybody (should) obey him
本句考查了虚拟语气，动词desire后面的宾语从句要使用虚拟语气should +动词原形；should可以省略。
小题8:that he adapted to
本句是一个强调句型，强调的是时间状语not until months later;后面使用陈述语序。
小题9:are bound to be
固定搭配be bound to do sth一定会做某事。
小题10:could have been avoided
本句是虚拟语气，could have done本可以做某事，实际上却未做。
点评：本题应注意名词单复数的变化，动词时态语态的变化，形容词和副词的变化，以及虚拟语气等具体语法的使用。