阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
小题1:__________________his studies makes his parents and teachers upset. (lose)
他对学习失去兴趣使他的父母和老师难过。
小题2:Up till now, more than 5000 trees____________________in and around the amusement park. (plant)
到目前为止，5000多棵树已被种在了该休闲公园里面及公园周围。
小题3:Our manager is on a business trip abroad now. You’d better_________________how well the marketing works. (inform)
我们经理在国外出差，你最好让他了解销售工作的进展状况。
小题4:It was after my explanation for several times__________________the main point. (sense)
解释了好几次，他才明白要点。
小题5:The album contains 50 photos, ____________________in the 1970s. (take)
该相集有50张照片，其中大部分拍摄于二十世纪七十年代。
小题6:__________________________, I always hope that it had better last a few more days. (however)
无论一个假期多长，我总希望最好能够再多几天。
小题7:When his mother came home from work，he was lying on the sofa, ____________________. (absorb)
母亲下班回家的时候，他正躺在沙发上专心致志地看书。
小题8:He was said __________________________from returning home for the Spring Festival by the snowstorm. (prevent）
据说雪暴阻止了他回家过春节。
小题9:Hardly __________________________his speech when the audience started to burst out cheering. (finish)
他一结束演讲观众就开始喝彩。
小题10:If she hadn’t fallen ill, she_______________________ a medal at Sochi 2014 Olympics. (win)
如果她没有生病的话，她可能在2014年的索契冬奥会上获得了一枚奖牌。
小题1:His losing interest in /That he loses( has lost/lost) interest in
小题2:have been planted
小题3:keep him informed of
小题4:that he made sense of
小题5:most of which were taken
小题6:However long a holiday/vacation is
小题7:(being) absorbed in reading(a book)
小题8:to have been prevented
小题9:had he finished
小题10:would/could/might/should have won
题目分析：
小题1:His losing interest in /That he loses( has lost/lost) interest in 考查动名词作主语或主语从句。
小题2:have been planted 考查被动语态的现在完成时态（时态 + 语态）。
小题3:keep him informed of 考查复合宾语，keep sb done 。
小题4:that he made sense of考查强调句型：It is/ was +强调部分+that+其它。
小题5:most of which were taken 考查非限制性定语从句。
小题6:However long a holiday/vacation is 考查让步状语从句。
小题7:(being) absorbed in reading(a book)考查分词作伴随状语。
小题8:to have been prevented考查不定式的完成被动式。
小题9:had he finished 考查倒装句。
小题10:would/could/might/should have won 考查虚拟语气。