Lastsummer，myfriendandIhiredacarandheadedforToronto．Wedidn'tbookahotelroom（61）itwasatthebeginningofSeptemberandwethoughtitwouldbeeasyforus（62）（find）ahotel．We（63）（drive）forsixho

Question

Last summer，my friend and I hired a car and headed for Toronto．We didn't book a hotel room （61）___ it was at the beginning of September and we thought it would be easy for us（62）___（find） a hotel．
We （63）___（drive） for six hours when the weather changed and it looked as if a thunderstorm was coming．We got lost and both were （64）___（exhaust） when I saw an old lady parking her car．I stopped and asked （65）___ she knew a hotel nearby．She said there was a hotel down the road，（66）___ it might have been closed．The lovely old lady looked at me and said，"Why don't you girls just stay the night at （67）___ house？I'll cook for you．"
We ended up going to a little island in Lake Muskoka，（68）___her family lived．We slept in the （69）___ （comfort） beds they built for their kids，and they cooked for us．We stayed at their house for three nights in all and also met their friends．Those days were the （70）___（good） part of our three-week trip!We were glad that we got lost and met the old lady．

Answer 1

61．because/as/since/for 考查连词．根据句意：我们没有预订旅馆房间，因为是在九月初，我们以为找到一个旅馆将会很容易．此处表示原因，故用because/as/since/for． 
62．to find 考查动词不定式．it is+adj．+for sb．to do sth．为固定用法，此处it是形式主语，真正的主语是不定式短语to find a hotel． 
63．had driven/had been driving 考查动词时态．根据句意：我们（一直）开车开了六个小时，这时天气变了．根据语境可知，此处要用过去完成时或者过去完成进行时，表示在过去某个时间之前已经完成或一直进行的动作． 
64．exhausted 考查过去分词．过去分词作表语，多半用来表示人物所处的心理状态或情感变化，其主语多半是人．
65．whether/if   查名词性从句的引导词．"我"停下来问她是否知道附近有没有旅馆．此处引导宾语从句，且表示"是否"，用whether/if．
66．but 考查连词．前后两个分句之间是转折关系，用连词but． 
67．my 考查代词．根据句意："你们为什么不去我家过夜呢？"及根据空后的I可知，此处要填形容词性物主代词my．   
68．where 考查定语从句．分析句子结构可知这是一个定语从句，先行词Lake Muskoka在从句作地点状语，用关系副词where．
69．comfortable 考查形容词． beds是名词，要用形容词修饰． 
70．best 考查形容词的最高级．根据句意：那些日子是我们三周旅行中最好的部分．即作者认为在老太太家的那三天是她们三周旅行中"最美好的"时光．