Jane was walking round the department store. She remembered how difficult _31_ was to choo

Jane was walking round the department store. She remembered how difficult _31_ was to choose a suitable Christmas present for her father. She wished that he was as easy _32_ （please）as her mother，who was always delighted with perfume.
Besides，shopping at this time of the year was not _33_ pleasant experience: people stepped on your feet or _34_ （push）you with their elbows（肘部），hurrying ahead to get to a bargain.
Jane paused in front of a counter _35_ some attractive ties were on display. “They are real silk，”the assistant tried to attract her. “Worth double the price. ”But Jane knew from past experience that her _36_ （choose）of ties hardly ever pleased her father.
Jane stopped where a small crowd of men had gathered. She found some good quality pipes _37_ sale. She did not hesitate for long: although her father smoked a pipe only once in a while，she knew that this was a present which was bound to please _38_.
When Jane got home，with her small but well-chosen present in her bag，her parents were already _39_ table having supper. Her mother was excited. “Your father has at last decided to stop smoking,” Jane _40_ （inform）. it

(答案→)it 解析：本文讲叙Jane在圣诞节给父亲选礼物，因往年送父亲领带不能使父亲高兴，满以为这次买烟斗送父亲会让父亲高兴的，却被告知父亲终于戒烟了。【小题1】在宾语从句中作形式主语，真正的主语是to choose…。【小题2】在形容词后作状语，只能用动词不定式。【小题3】表示“一次”愉快的经历。【小题4】与stepped并列，也用一般过去时。【小题5】因两句之间没有连词，必定是填连词；后句是定语从句，要填的词在从句中作地点状语，故填关系副词where。【小题6】在形容词性物主代词后一定是用名词形式。【小题7】因表示“出售”的on sale是固定搭配。【小题8】给父亲买礼物，根据常识应是使父亲高兴，作宾语用代词。please him /father使他高兴。【小题9】名词（table）在句中不作主语，也不作动词的宾语，很可能就是作介词的宾语；由having supper可知，填at；因为at table表示“在餐桌边，在进餐”，也是习惯搭配。【小题10】因Jane与inform是被动关系，又是一般过去时。

就是这个解释