课时作业(九) 必修2 unit 4 wildlife protection ⅰ.单项填空 1.(2014·陕西五校二模)his explanation that he is at________loss what to do next doesn’t hold________water. a.a;/ b.a;the c.the;/ d./;/ 2.(2014·银川一中质检)little johnny felt the bag,curious to know what it________. a.collected b.contained c.loaded d.saved 3.(2014·焦作质检)the film lost in thailand________a great success and brought in a large